387634580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{53}}^1\times {\mathrm{1013}}^1$

素因数の和:1113

約数の個数: 72

約数和(自身を含む): 876205512

約数和(自身を除く): 488570932

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 53, 76, 95, 106, 190, 212, 265, 361, 380, 530, 722, 1007, 1013, 1060, 1444, 1805, 2014, 2026, 3610, 4028, 4052, 5035, 5065, 7220, 10070, 10130, 19133, 19247, 20140, 20260, 38266, 38494, 53689, 76532, 76988, 95665, 96235, 107378, 191330, 192470, 214756, 268445, 365693, 382660, 384940, 536890, 731386, 1020091, 1073780, 1462772, 1828465, 2040182, 3656930, 4080364, 5100455, 7313860, 10200910, 19381729, 20401820, 38763458, 77526916, 96908645, 193817290, 387634580]

約数ペア:

[(1, 387634580), (2, 193817290), (4, 96908645), (5, 77526916), (10, 38763458), (19, 20401820), (20, 19381729), (38, 10200910), (53, 7313860), (76, 5100455), (95, 4080364), (106, 3656930), (190, 2040182), (212, 1828465), (265, 1462772), (361, 1073780), (380, 1020091), (530, 731386), (722, 536890), (1007, 384940), (1013, 382660), (1060, 365693), (1444, 268445), (1805, 214756), (2014, 192470), (2026, 191330), (3610, 107378), (4028, 96235), (4052, 95665), (5035, 76988), (5065, 76532), (7220, 53689), (10070, 38494), (10130, 38266), (19133, 20260), (19247, 20140)]