649466740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{4241}}^1$

素因数の和:4313

約数の個数: 96

約数和(自身を含む): 1596349440

約数和(自身を除く): 946882700

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 31, 38, 52, 62, 65, 76, 95, 124, 130, 155, 190, 247, 260, 310, 380, 403, 494, 589, 620, 806, 988, 1178, 1235, 1612, 2015, 2356, 2470, 2945, 4030, 4241, 4940, 5890, 7657, 8060, 8482, 11780, 15314, 16964, 21205, 30628, 38285, 42410, 55133, 76570, 80579, 84820, 110266, 131471, 153140, 161158, 220532, 262942, 275665, 322316, 402895, 525884, 551330, 657355, 805790, 1047527, 1102660, 1314710, 1611580, 1709123, 2095054, 2497949, 2629420, 3418246, 4190108, 4995898, 5237635, 6836492, 8545615, 9991796, 10475270, 12489745, 17091230, 20950540, 24979490, 32473337, 34182460, 49958980, 64946674, 129893348, 162366685, 324733370, 649466740]

約数ペア:

[(1, 649466740), (2, 324733370), (4, 162366685), (5, 129893348), (10, 64946674), (13, 49958980), (19, 34182460), (20, 32473337), (26, 24979490), (31, 20950540), (38, 17091230), (52, 12489745), (62, 10475270), (65, 9991796), (76, 8545615), (95, 6836492), (124, 5237635), (130, 4995898), (155, 4190108), (190, 3418246), (247, 2629420), (260, 2497949), (310, 2095054), (380, 1709123), (403, 1611580), (494, 1314710), (589, 1102660), (620, 1047527), (806, 805790), (988, 657355), (1178, 551330), (1235, 525884), (1612, 402895), (2015, 322316), (2356, 275665), (2470, 262942), (2945, 220532), (4030, 161158), (4241, 153140), (4940, 131471), (5890, 110266), (7657, 84820), (8060, 80579), (8482, 76570), (11780, 55133), (15314, 42410), (16964, 38285), (21205, 30628)]