18464810

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{197}}^1$

素因数の和:327

約数の個数: 64

約数和(自身を含む): 41513472

約数和(自身を除く): 23048662

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 103, 130, 182, 197, 206, 394, 455, 515, 721, 910, 985, 1030, 1339, 1379, 1442, 1970, 2561, 2678, 2758, 3605, 5122, 6695, 6895, 7210, 9373, 12805, 13390, 13790, 17927, 18746, 20291, 25610, 35854, 40582, 46865, 89635, 93730, 101455, 142037, 179270, 202910, 263783, 284074, 527566, 710185, 1318915, 1420370, 1846481, 2637830, 3692962, 9232405, 18464810]

約数ペア:

[(1, 18464810), (2, 9232405), (5, 3692962), (7, 2637830), (10, 1846481), (13, 1420370), (14, 1318915), (26, 710185), (35, 527566), (65, 284074), (70, 263783), (91, 202910), (103, 179270), (130, 142037), (182, 101455), (197, 93730), (206, 89635), (394, 46865), (455, 40582), (515, 35854), (721, 25610), (910, 20291), (985, 18746), (1030, 17927), (1339, 13790), (1379, 13390), (1442, 12805), (1970, 9373), (2561, 7210), (2678, 6895), (2758, 6695), (3605, 5122)]