77267840

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{251}}^1$

素因数の和:320

約数の個数: 128

約数和(自身を含む): 205117920

約数和(自身を除く): 127850080

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 37, 40, 52, 64, 65, 74, 80, 104, 128, 130, 148, 160, 185, 208, 251, 260, 296, 320, 370, 416, 481, 502, 520, 592, 640, 740, 832, 962, 1004, 1040, 1184, 1255, 1480, 1664, 1924, 2008, 2080, 2368, 2405, 2510, 2960, 3263, 3848, 4016, 4160, 4736, 4810, 5020, 5920, 6526, 7696, 8032, 8320, 9287, 9620, 10040, 11840, 13052, 15392, 16064, 16315, 18574, 19240, 20080, 23680, 26104, 30784, 32128, 32630, 37148, 38480, 40160, 46435, 52208, 61568, 65260, 74296, 76960, 80320, 92870, 104416, 120731, 130520, 148592, 153920, 160640, 185740, 208832, 241462, 261040, 297184, 307840, 371480, 417664, 482924, 522080, 594368, 603655, 742960, 965848, 1044160, 1188736, 1207310, 1485920, 1931696, 2088320, 2414620, 2971840, 3863392, 4829240, 5943680, 7726784, 9658480, 15453568, 19316960, 38633920, 77267840]

約数ペア:

[(1, 77267840), (2, 38633920), (4, 19316960), (5, 15453568), (8, 9658480), (10, 7726784), (13, 5943680), (16, 4829240), (20, 3863392), (26, 2971840), (32, 2414620), (37, 2088320), (40, 1931696), (52, 1485920), (64, 1207310), (65, 1188736), (74, 1044160), (80, 965848), (104, 742960), (128, 603655), (130, 594368), (148, 522080), (160, 482924), (185, 417664), (208, 371480), (251, 307840), (260, 297184), (296, 261040), (320, 241462), (370, 208832), (416, 185740), (481, 160640), (502, 153920), (520, 148592), (592, 130520), (640, 120731), (740, 104416), (832, 92870), (962, 80320), (1004, 76960), (1040, 74296), (1184, 65260), (1255, 61568), (1480, 52208), (1664, 46435), (1924, 40160), (2008, 38480), (2080, 37148), (2368, 32630), (2405, 32128), (2510, 30784), (2960, 26104), (3263, 23680), (3848, 20080), (4016, 19240), (4160, 18574), (4736, 16315), (4810, 16064), (5020, 15392), (5920, 13052), (6526, 11840), (7696, 10040), (8032, 9620), (8320, 9287)]