84807940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{19541}}^1$

素因数の和:19588

約数の個数: 48

約数和(自身を含む): 210115584

約数和(自身を除く): 125307644

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 19541, 39082, 78164, 97705, 136787, 195410, 273574, 390820, 547148, 605771, 683935, 1211542, 1367870, 2423084, 2735740, 3028855, 4240397, 6057710, 8480794, 12115420, 16961588, 21201985, 42403970, 84807940]

約数ペア:

[(1, 84807940), (2, 42403970), (4, 21201985), (5, 16961588), (7, 12115420), (10, 8480794), (14, 6057710), (20, 4240397), (28, 3028855), (31, 2735740), (35, 2423084), (62, 1367870), (70, 1211542), (124, 683935), (140, 605771), (155, 547148), (217, 390820), (310, 273574), (434, 195410), (620, 136787), (868, 97705), (1085, 78164), (2170, 39082), (4340, 19541)]