251061720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{277}}^1$

素因数の和:394

約数の個数: 256

約数和(自身を含む): 941552640

約数和(自身を除く): 690490920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 52, 56, 60, 65, 70, 78, 83, 84, 91, 104, 105, 120, 130, 140, 156, 166, 168, 182, 195, 210, 249, 260, 273, 277, 280, 312, 332, 364, 390, 415, 420, 455, 498, 520, 546, 554, 581, 664, 728, 780, 830, 831, 840, 910, 996, 1079, 1092, 1108, 1162, 1245, 1365, 1385, 1560, 1660, 1662, 1743, 1820, 1939, 1992, 2158, 2184, 2216, 2324, 2490, 2730, 2770, 2905, 3237, 3320, 3324, 3486, 3601, 3640, 3878, 4155, 4316, 4648, 4980, 5395, 5460, 5540, 5810, 5817, 6474, 6648, 6972, 7202, 7553, 7756, 8310, 8632, 8715, 9695, 9960, 10790, 10803, 10920, 11080, 11620, 11634, 12948, 13944, 14404, 15106, 15512, 16185, 16620, 17430, 18005, 19390, 21580, 21606, 22659, 22991, 23240, 23268, 25207, 25896, 28808, 29085, 30212, 32370, 33240, 34860, 36010, 37765, 38780, 43160, 43212, 45318, 45982, 46536, 50414, 54015, 58170, 60424, 64740, 68973, 69720, 72020, 75530, 75621, 77560, 86424, 90636, 91964, 100828, 108030, 113295, 114955, 116340, 126035, 129480, 137946, 144040, 151060, 151242, 160937, 181272, 183928, 201656, 216060, 226590, 229910, 232680, 252070, 275892, 298883, 302120, 302484, 321874, 344865, 378105, 432120, 453180, 459820, 482811, 504140, 551784, 597766, 604968, 643748, 689730, 756210, 804685, 896649, 906360, 919640, 965622, 1008280, 1195532, 1287496, 1379460, 1494415, 1512420, 1609370, 1793298, 1931244, 2092181, 2391064, 2414055, 2758920, 2988830, 3024840, 3218740, 3586596, 3862488, 4184362, 4483245, 4828110, 5977660, 6276543, 6437480, 7173192, 8368724, 8966490, 9656220, 10460905, 11955320, 12553086, 16737448, 17932980, 19312440, 20921810, 25106172, 31382715, 35865960, 41843620, 50212344, 62765430, 83687240, 125530860, 251061720]

約数ペア:

[(1, 251061720), (2, 125530860), (3, 83687240), (4, 62765430), (5, 50212344), (6, 41843620), (7, 35865960), (8, 31382715), (10, 25106172), (12, 20921810), (13, 19312440), (14, 17932980), (15, 16737448), (20, 12553086), (21, 11955320), (24, 10460905), (26, 9656220), (28, 8966490), (30, 8368724), (35, 7173192), (39, 6437480), (40, 6276543), (42, 5977660), (52, 4828110), (56, 4483245), (60, 4184362), (65, 3862488), (70, 3586596), (78, 3218740), (83, 3024840), (84, 2988830), (91, 2758920), (104, 2414055), (105, 2391064), (120, 2092181), (130, 1931244), (140, 1793298), (156, 1609370), (166, 1512420), (168, 1494415), (182, 1379460), (195, 1287496), (210, 1195532), (249, 1008280), (260, 965622), (273, 919640), (277, 906360), (280, 896649), (312, 804685), (332, 756210), (364, 689730), (390, 643748), (415, 604968), (420, 597766), (455, 551784), (498, 504140), (520, 482811), (546, 459820), (554, 453180), (581, 432120), (664, 378105), (728, 344865), (780, 321874), (830, 302484), (831, 302120), (840, 298883), (910, 275892), (996, 252070), (1079, 232680), (1092, 229910), (1108, 226590), (1162, 216060), (1245, 201656), (1365, 183928), (1385, 181272), (1560, 160937), (1660, 151242), (1662, 151060), (1743, 144040), (1820, 137946), (1939, 129480), (1992, 126035), (2158, 116340), (2184, 114955), (2216, 113295), (2324, 108030), (2490, 100828), (2730, 91964), (2770, 90636), (2905, 86424), (3237, 77560), (3320, 75621), (3324, 75530), (3486, 72020), (3601, 69720), (3640, 68973), (3878, 64740), (4155, 60424), (4316, 58170), (4648, 54015), (4980, 50414), (5395, 46536), (5460, 45982), (5540, 45318), (5810, 43212), (5817, 43160), (6474, 38780), (6648, 37765), (6972, 36010), (7202, 34860), (7553, 33240), (7756, 32370), (8310, 30212), (8632, 29085), (8715, 28808), (9695, 25896), (9960, 25207), (10790, 23268), (10803, 23240), (10920, 22991), (11080, 22659), (11620, 21606), (11634, 21580), (12948, 19390), (13944, 18005), (14404, 17430), (15106, 16620), (15512, 16185)]