123920320

素因数分解:

$2^6\times 5^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{149}}^1$

素因数の和:302

約数の個数: 112

約数和(自身を含む): 312724800

約数和(自身を除く): 188804480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 113, 115, 149, 160, 184, 226, 230, 298, 320, 368, 452, 460, 565, 596, 736, 745, 904, 920, 1130, 1192, 1472, 1490, 1808, 1840, 2260, 2384, 2599, 2980, 3427, 3616, 3680, 4520, 4768, 5198, 5960, 6854, 7232, 7360, 9040, 9536, 10396, 11920, 12995, 13708, 16837, 17135, 18080, 20792, 23840, 25990, 27416, 33674, 34270, 36160, 41584, 47680, 51980, 54832, 67348, 68540, 83168, 84185, 103960, 109664, 134696, 137080, 166336, 168370, 207920, 219328, 269392, 274160, 336740, 387251, 415840, 538784, 548320, 673480, 774502, 831680, 1077568, 1096640, 1346960, 1549004, 1936255, 2693920, 3098008, 3872510, 5387840, 6196016, 7745020, 12392032, 15490040, 24784064, 30980080, 61960160, 123920320]

約数ペア:

[(1, 123920320), (2, 61960160), (4, 30980080), (5, 24784064), (8, 15490040), (10, 12392032), (16, 7745020), (20, 6196016), (23, 5387840), (32, 3872510), (40, 3098008), (46, 2693920), (64, 1936255), (80, 1549004), (92, 1346960), (113, 1096640), (115, 1077568), (149, 831680), (160, 774502), (184, 673480), (226, 548320), (230, 538784), (298, 415840), (320, 387251), (368, 336740), (452, 274160), (460, 269392), (565, 219328), (596, 207920), (736, 168370), (745, 166336), (904, 137080), (920, 134696), (1130, 109664), (1192, 103960), (1472, 84185), (1490, 83168), (1808, 68540), (1840, 67348), (2260, 54832), (2384, 51980), (2599, 47680), (2980, 41584), (3427, 36160), (3616, 34270), (3680, 33674), (4520, 27416), (4768, 25990), (5198, 23840), (5960, 20792), (6854, 18080), (7232, 17135), (7360, 16837), (9040, 13708), (9536, 12995), (10396, 11920)]