245151720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1997}}^1$

素因数の和:2056

約数の個数: 192

約数和(自身を含む): 897661440

約数和(自身を除く): 652509720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 30, 31, 33, 36, 40, 44, 45, 55, 60, 62, 66, 72, 88, 90, 93, 99, 110, 120, 124, 132, 155, 165, 180, 186, 198, 220, 248, 264, 279, 310, 330, 341, 360, 372, 396, 440, 465, 495, 558, 620, 660, 682, 744, 792, 930, 990, 1023, 1116, 1240, 1320, 1364, 1395, 1705, 1860, 1980, 1997, 2046, 2232, 2728, 2790, 3069, 3410, 3720, 3960, 3994, 4092, 5115, 5580, 5991, 6138, 6820, 7988, 8184, 9985, 10230, 11160, 11982, 12276, 13640, 15345, 15976, 17973, 19970, 20460, 21967, 23964, 24552, 29955, 30690, 35946, 39940, 40920, 43934, 47928, 59910, 61380, 61907, 65901, 71892, 79880, 87868, 89865, 109835, 119820, 122760, 123814, 131802, 143784, 175736, 179730, 185721, 197703, 219670, 239640, 247628, 263604, 309535, 329505, 359460, 371442, 395406, 439340, 495256, 527208, 557163, 619070, 659010, 680977, 718920, 742884, 790812, 878680, 928605, 988515, 1114326, 1238140, 1318020, 1361954, 1485768, 1581624, 1857210, 1977030, 2042931, 2228652, 2476280, 2636040, 2723908, 2785815, 3404885, 3714420, 3954060, 4085862, 4457304, 5447816, 5571630, 6128793, 6809770, 7428840, 7908120, 8171724, 10214655, 11143260, 12257586, 13619540, 16343448, 20429310, 22286520, 24515172, 27239080, 30643965, 40858620, 49030344, 61287930, 81717240, 122575860, 245151720]

約数ペア:

[(1, 245151720), (2, 122575860), (3, 81717240), (4, 61287930), (5, 49030344), (6, 40858620), (8, 30643965), (9, 27239080), (10, 24515172), (11, 22286520), (12, 20429310), (15, 16343448), (18, 13619540), (20, 12257586), (22, 11143260), (24, 10214655), (30, 8171724), (31, 7908120), (33, 7428840), (36, 6809770), (40, 6128793), (44, 5571630), (45, 5447816), (55, 4457304), (60, 4085862), (62, 3954060), (66, 3714420), (72, 3404885), (88, 2785815), (90, 2723908), (93, 2636040), (99, 2476280), (110, 2228652), (120, 2042931), (124, 1977030), (132, 1857210), (155, 1581624), (165, 1485768), (180, 1361954), (186, 1318020), (198, 1238140), (220, 1114326), (248, 988515), (264, 928605), (279, 878680), (310, 790812), (330, 742884), (341, 718920), (360, 680977), (372, 659010), (396, 619070), (440, 557163), (465, 527208), (495, 495256), (558, 439340), (620, 395406), (660, 371442), (682, 359460), (744, 329505), (792, 309535), (930, 263604), (990, 247628), (1023, 239640), (1116, 219670), (1240, 197703), (1320, 185721), (1364, 179730), (1395, 175736), (1705, 143784), (1860, 131802), (1980, 123814), (1997, 122760), (2046, 119820), (2232, 109835), (2728, 89865), (2790, 87868), (3069, 79880), (3410, 71892), (3720, 65901), (3960, 61907), (3994, 61380), (4092, 59910), (5115, 47928), (5580, 43934), (5991, 40920), (6138, 39940), (6820, 35946), (7988, 30690), (8184, 29955), (9985, 24552), (10230, 23964), (11160, 21967), (11982, 20460), (12276, 19970), (13640, 17973), (15345, 15976)]