28696980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{36791}}^1$

素因数の和:36816

約数の個数: 48

約数和(自身を含む): 86534784

約数和(自身を除く): 57837804

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 36791, 73582, 110373, 147164, 183955, 220746, 367910, 441492, 478283, 551865, 735820, 956566, 1103730, 1434849, 1913132, 2207460, 2391415, 2869698, 4782830, 5739396, 7174245, 9565660, 14348490, 28696980]

約数ペア:

[(1, 28696980), (2, 14348490), (3, 9565660), (4, 7174245), (5, 5739396), (6, 4782830), (10, 2869698), (12, 2391415), (13, 2207460), (15, 1913132), (20, 1434849), (26, 1103730), (30, 956566), (39, 735820), (52, 551865), (60, 478283), (65, 441492), (78, 367910), (130, 220746), (156, 183955), (195, 147164), (260, 110373), (390, 73582), (780, 36791)]