813317720

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{23893}}^1$

素因数の和:23964

約数の個数: 64

約数和(自身を含む): 1961219520

約数和(自身を除く): 1147901800

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 37, 40, 46, 74, 92, 115, 148, 184, 185, 230, 296, 370, 460, 740, 851, 920, 1480, 1702, 3404, 4255, 6808, 8510, 17020, 23893, 34040, 47786, 95572, 119465, 191144, 238930, 477860, 549539, 884041, 955720, 1099078, 1768082, 2198156, 2747695, 3536164, 4396312, 4420205, 5495390, 7072328, 8840410, 10990780, 17680820, 20332943, 21981560, 35361640, 40665886, 81331772, 101664715, 162663544, 203329430, 406658860, 813317720]

約数ペア:

[(1, 813317720), (2, 406658860), (4, 203329430), (5, 162663544), (8, 101664715), (10, 81331772), (20, 40665886), (23, 35361640), (37, 21981560), (40, 20332943), (46, 17680820), (74, 10990780), (92, 8840410), (115, 7072328), (148, 5495390), (184, 4420205), (185, 4396312), (230, 3536164), (296, 2747695), (370, 2198156), (460, 1768082), (740, 1099078), (851, 955720), (920, 884041), (1480, 549539), (1702, 477860), (3404, 238930), (4255, 191144), (6808, 119465), (8510, 95572), (17020, 47786), (23893, 34040)]