181040

素因数分解:

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

素因数の和:117

約数の個数: 40

約数和(自身を含む): 440448

約数和(自身を除く): 259408

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, 5840, 9052, 11315, 18104, 22630, 36208, 45260, 90520, 181040]

約数ペア:

[(1, 181040), (2, 90520), (4, 45260), (5, 36208), (8, 22630), (10, 18104), (16, 11315), (20, 9052), (31, 5840), (40, 4526), (62, 2920), (73, 2480), (80, 2263), (124, 1460), (146, 1240), (155, 1168), (248, 730), (292, 620), (310, 584), (365, 496)]