31306860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{787}}^1$

素因数の和:832

約数の個数: 144

約数和(自身を含む): 108422496

約数和(自身を除く): 77115636

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 17, 18, 20, 26, 30, 34, 36, 39, 45, 51, 52, 60, 65, 68, 78, 85, 90, 102, 117, 130, 153, 156, 170, 180, 195, 204, 221, 234, 255, 260, 306, 340, 390, 442, 468, 510, 585, 612, 663, 765, 780, 787, 884, 1020, 1105, 1170, 1326, 1530, 1574, 1989, 2210, 2340, 2361, 2652, 3060, 3148, 3315, 3935, 3978, 4420, 4722, 6630, 7083, 7870, 7956, 9444, 9945, 10231, 11805, 13260, 13379, 14166, 15740, 19890, 20462, 23610, 26758, 28332, 30693, 35415, 39780, 40137, 40924, 47220, 51155, 53516, 61386, 66895, 70830, 80274, 92079, 102310, 120411, 122772, 133790, 141660, 153465, 160548, 173927, 184158, 200685, 204620, 240822, 267580, 306930, 347854, 368316, 401370, 460395, 481644, 521781, 602055, 613860, 695708, 802740, 869635, 920790, 1043562, 1204110, 1565343, 1739270, 1841580, 2087124, 2408220, 2608905, 3130686, 3478540, 5217810, 6261372, 7826715, 10435620, 15653430, 31306860]

約数ペア:

[(1, 31306860), (2, 15653430), (3, 10435620), (4, 7826715), (5, 6261372), (6, 5217810), (9, 3478540), (10, 3130686), (12, 2608905), (13, 2408220), (15, 2087124), (17, 1841580), (18, 1739270), (20, 1565343), (26, 1204110), (30, 1043562), (34, 920790), (36, 869635), (39, 802740), (45, 695708), (51, 613860), (52, 602055), (60, 521781), (65, 481644), (68, 460395), (78, 401370), (85, 368316), (90, 347854), (102, 306930), (117, 267580), (130, 240822), (153, 204620), (156, 200685), (170, 184158), (180, 173927), (195, 160548), (204, 153465), (221, 141660), (234, 133790), (255, 122772), (260, 120411), (306, 102310), (340, 92079), (390, 80274), (442, 70830), (468, 66895), (510, 61386), (585, 53516), (612, 51155), (663, 47220), (765, 40924), (780, 40137), (787, 39780), (884, 35415), (1020, 30693), (1105, 28332), (1170, 26758), (1326, 23610), (1530, 20462), (1574, 19890), (1989, 15740), (2210, 14166), (2340, 13379), (2361, 13260), (2652, 11805), (3060, 10231), (3148, 9945), (3315, 9444), (3935, 7956), (3978, 7870), (4420, 7083), (4722, 6630)]