72813320

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{643}}^1$

素因数の和:822

約数の個数: 64

約数和(自身を含む): 173880000

約数和(自身を除く): 101066680

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 149, 152, 190, 298, 380, 596, 643, 745, 760, 1192, 1286, 1490, 2572, 2831, 2980, 3215, 5144, 5662, 5960, 6430, 11324, 12217, 12860, 14155, 22648, 24434, 25720, 28310, 48868, 56620, 61085, 95807, 97736, 113240, 122170, 191614, 244340, 383228, 479035, 488680, 766456, 958070, 1820333, 1916140, 3640666, 3832280, 7281332, 9101665, 14562664, 18203330, 36406660, 72813320]

約数ペア:

[(1, 72813320), (2, 36406660), (4, 18203330), (5, 14562664), (8, 9101665), (10, 7281332), (19, 3832280), (20, 3640666), (38, 1916140), (40, 1820333), (76, 958070), (95, 766456), (149, 488680), (152, 479035), (190, 383228), (298, 244340), (380, 191614), (596, 122170), (643, 113240), (745, 97736), (760, 95807), (1192, 61085), (1286, 56620), (1490, 48868), (2572, 28310), (2831, 25720), (2980, 24434), (3215, 22648), (5144, 14155), (5662, 12860), (5960, 12217), (6430, 11324)]