13215920

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{73}}^2$

素因数の和:190

約数の個数: 60

約数和(自身を含む): 32158656

約数和(自身を除く): 18942736

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 73, 80, 124, 146, 155, 248, 292, 310, 365, 496, 584, 620, 730, 1168, 1240, 1460, 2263, 2480, 2920, 4526, 5329, 5840, 9052, 10658, 11315, 18104, 21316, 22630, 26645, 36208, 42632, 45260, 53290, 85264, 90520, 106580, 165199, 181040, 213160, 330398, 426320, 660796, 825995, 1321592, 1651990, 2643184, 3303980, 6607960, 13215920]

約数ペア:

[(1, 13215920), (2, 6607960), (4, 3303980), (5, 2643184), (8, 1651990), (10, 1321592), (16, 825995), (20, 660796), (31, 426320), (40, 330398), (62, 213160), (73, 181040), (80, 165199), (124, 106580), (146, 90520), (155, 85264), (248, 53290), (292, 45260), (310, 42632), (365, 36208), (496, 26645), (584, 22630), (620, 21316), (730, 18104), (1168, 11315), (1240, 10658), (1460, 9052), (2263, 5840), (2480, 5329), (2920, 4526)]