180768440

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{1997}}^1$

素因数の和:2112

約数の個数: 64

約数和(自身を含む): 425813760

約数和(自身を除く): 245045320

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 73, 124, 146, 155, 248, 292, 310, 365, 584, 620, 730, 1240, 1460, 1997, 2263, 2920, 3994, 4526, 7988, 9052, 9985, 11315, 15976, 18104, 19970, 22630, 39940, 45260, 61907, 79880, 90520, 123814, 145781, 247628, 291562, 309535, 495256, 583124, 619070, 728905, 1166248, 1238140, 1457810, 2476280, 2915620, 4519211, 5831240, 9038422, 18076844, 22596055, 36153688, 45192110, 90384220, 180768440]

約数ペア:

[(1, 180768440), (2, 90384220), (4, 45192110), (5, 36153688), (8, 22596055), (10, 18076844), (20, 9038422), (31, 5831240), (40, 4519211), (62, 2915620), (73, 2476280), (124, 1457810), (146, 1238140), (155, 1166248), (248, 728905), (292, 619070), (310, 583124), (365, 495256), (584, 309535), (620, 291562), (730, 247628), (1240, 145781), (1460, 123814), (1997, 90520), (2263, 79880), (2920, 61907), (3994, 45260), (4526, 39940), (7988, 22630), (9052, 19970), (9985, 18104), (11315, 15976)]