309660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{397}}^1$

素因数の和:422

約数の個数: 48

約数和(自身を含む): 936096

約数和(自身を除く): 626436

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, 397, 780, 794, 1191, 1588, 1985, 2382, 3970, 4764, 5161, 5955, 7940, 10322, 11910, 15483, 20644, 23820, 25805, 30966, 51610, 61932, 77415, 103220, 154830, 309660]

約数ペア:

[(1, 309660), (2, 154830), (3, 103220), (4, 77415), (5, 61932), (6, 51610), (10, 30966), (12, 25805), (13, 23820), (15, 20644), (20, 15483), (26, 11910), (30, 10322), (39, 7940), (52, 5955), (60, 5161), (65, 4764), (78, 3970), (130, 2382), (156, 1985), (195, 1588), (260, 1191), (390, 794), (397, 780)]