661383840

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{1277}}^1$

素因数の和:1391

約数の個数: 192

約数和(自身を含む): 2272427136

約数和(自身を除く): 1611043296

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 65, 78, 80, 83, 96, 104, 120, 130, 156, 160, 166, 195, 208, 240, 249, 260, 312, 332, 390, 415, 416, 480, 498, 520, 624, 664, 780, 830, 996, 1040, 1079, 1245, 1248, 1277, 1328, 1560, 1660, 1992, 2080, 2158, 2490, 2554, 2656, 3120, 3237, 3320, 3831, 3984, 4316, 4980, 5108, 5395, 6240, 6385, 6474, 6640, 7662, 7968, 8632, 9960, 10216, 10790, 12770, 12948, 13280, 15324, 16185, 16601, 17264, 19155, 19920, 20432, 21580, 25540, 25896, 30648, 32370, 33202, 34528, 38310, 39840, 40864, 43160, 49803, 51080, 51792, 61296, 64740, 66404, 76620, 83005, 86320, 99606, 102160, 103584, 105991, 122592, 129480, 132808, 153240, 166010, 172640, 199212, 204320, 211982, 249015, 258960, 265616, 306480, 317973, 332020, 398424, 423964, 498030, 517920, 529955, 531232, 612960, 635946, 664040, 796848, 847928, 996060, 1059910, 1271892, 1328080, 1377883, 1589865, 1593696, 1695856, 1992120, 2119820, 2543784, 2656160, 2755766, 3179730, 3391712, 3984240, 4133649, 4239640, 5087568, 5511532, 6359460, 6889415, 7968480, 8267298, 8479280, 10175136, 11023064, 12718920, 13778830, 16534596, 16958560, 20668245, 22046128, 25437840, 27557660, 33069192, 41336490, 44092256, 50875680, 55115320, 66138384, 82672980, 110230640, 132276768, 165345960, 220461280, 330691920, 661383840]

約数ペア:

[(1, 661383840), (2, 330691920), (3, 220461280), (4, 165345960), (5, 132276768), (6, 110230640), (8, 82672980), (10, 66138384), (12, 55115320), (13, 50875680), (15, 44092256), (16, 41336490), (20, 33069192), (24, 27557660), (26, 25437840), (30, 22046128), (32, 20668245), (39, 16958560), (40, 16534596), (48, 13778830), (52, 12718920), (60, 11023064), (65, 10175136), (78, 8479280), (80, 8267298), (83, 7968480), (96, 6889415), (104, 6359460), (120, 5511532), (130, 5087568), (156, 4239640), (160, 4133649), (166, 3984240), (195, 3391712), (208, 3179730), (240, 2755766), (249, 2656160), (260, 2543784), (312, 2119820), (332, 1992120), (390, 1695856), (415, 1593696), (416, 1589865), (480, 1377883), (498, 1328080), (520, 1271892), (624, 1059910), (664, 996060), (780, 847928), (830, 796848), (996, 664040), (1040, 635946), (1079, 612960), (1245, 531232), (1248, 529955), (1277, 517920), (1328, 498030), (1560, 423964), (1660, 398424), (1992, 332020), (2080, 317973), (2158, 306480), (2490, 265616), (2554, 258960), (2656, 249015), (3120, 211982), (3237, 204320), (3320, 199212), (3831, 172640), (3984, 166010), (4316, 153240), (4980, 132808), (5108, 129480), (5395, 122592), (6240, 105991), (6385, 103584), (6474, 102160), (6640, 99606), (7662, 86320), (7968, 83005), (8632, 76620), (9960, 66404), (10216, 64740), (10790, 61296), (12770, 51792), (12948, 51080), (13280, 49803), (15324, 43160), (16185, 40864), (16601, 39840), (17264, 38310), (19155, 34528), (19920, 33202), (20432, 32370), (21580, 30648), (25540, 25896)]