8157804920

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{131}}^1\times {\mathrm{26387}}^1$

素因数の和:26588

約数の個数: 64

約数和(自身を含む): 18809366400

約数和(自身を除く): 10651561480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 118, 131, 236, 262, 295, 472, 524, 590, 655, 1048, 1180, 1310, 2360, 2620, 5240, 7729, 15458, 26387, 30916, 38645, 52774, 61832, 77290, 105548, 131935, 154580, 211096, 263870, 309160, 527740, 1055480, 1556833, 3113666, 3456697, 6227332, 6913394, 7784165, 12454664, 13826788, 15568330, 17283485, 27653576, 31136660, 34566970, 62273320, 69133940, 138267880, 203945123, 407890246, 815780492, 1019725615, 1631560984, 2039451230, 4078902460, 8157804920]

約数ペア:

[(1, 8157804920), (2, 4078902460), (4, 2039451230), (5, 1631560984), (8, 1019725615), (10, 815780492), (20, 407890246), (40, 203945123), (59, 138267880), (118, 69133940), (131, 62273320), (236, 34566970), (262, 31136660), (295, 27653576), (472, 17283485), (524, 15568330), (590, 13826788), (655, 12454664), (1048, 7784165), (1180, 6913394), (1310, 6227332), (2360, 3456697), (2620, 3113666), (5240, 1556833), (7729, 1055480), (15458, 527740), (26387, 309160), (30916, 263870), (38645, 211096), (52774, 154580), (61832, 131935), (77290, 105548)]