61991820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{239}}^1$

素因数の和:396

約数の個数: 144

約数和(自身を含む): 207567360

約数和(自身を除く): 145575540

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 131, 132, 165, 180, 198, 220, 239, 262, 330, 393, 396, 478, 495, 524, 655, 660, 717, 786, 956, 990, 1179, 1195, 1310, 1434, 1441, 1572, 1965, 1980, 2151, 2358, 2390, 2620, 2629, 2868, 2882, 3585, 3930, 4302, 4323, 4716, 4780, 5258, 5764, 5895, 7170, 7205, 7860, 7887, 8604, 8646, 10516, 10755, 11790, 12969, 13145, 14340, 14410, 15774, 17292, 21510, 21615, 23580, 23661, 25938, 26290, 28820, 31309, 31548, 39435, 43020, 43230, 47322, 51876, 52580, 62618, 64845, 78870, 86460, 93927, 94644, 118305, 125236, 129690, 156545, 157740, 187854, 236610, 259380, 281781, 313090, 344399, 375708, 469635, 473220, 563562, 626180, 688798, 939270, 1033197, 1127124, 1377596, 1408905, 1721995, 1878540, 2066394, 2817810, 3099591, 3443990, 4132788, 5165985, 5635620, 6199182, 6887980, 10331970, 12398364, 15497955, 20663940, 30995910, 61991820]

約数ペア:

[(1, 61991820), (2, 30995910), (3, 20663940), (4, 15497955), (5, 12398364), (6, 10331970), (9, 6887980), (10, 6199182), (11, 5635620), (12, 5165985), (15, 4132788), (18, 3443990), (20, 3099591), (22, 2817810), (30, 2066394), (33, 1878540), (36, 1721995), (44, 1408905), (45, 1377596), (55, 1127124), (60, 1033197), (66, 939270), (90, 688798), (99, 626180), (110, 563562), (131, 473220), (132, 469635), (165, 375708), (180, 344399), (198, 313090), (220, 281781), (239, 259380), (262, 236610), (330, 187854), (393, 157740), (396, 156545), (478, 129690), (495, 125236), (524, 118305), (655, 94644), (660, 93927), (717, 86460), (786, 78870), (956, 64845), (990, 62618), (1179, 52580), (1195, 51876), (1310, 47322), (1434, 43230), (1441, 43020), (1572, 39435), (1965, 31548), (1980, 31309), (2151, 28820), (2358, 26290), (2390, 25938), (2620, 23661), (2629, 23580), (2868, 21615), (2882, 21510), (3585, 17292), (3930, 15774), (4302, 14410), (4323, 14340), (4716, 13145), (4780, 12969), (5258, 11790), (5764, 10755), (5895, 10516), (7170, 8646), (7205, 8604), (7860, 7887)]