168156920

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{107}}^1\times {\mathrm{389}}^1$

素因数の和:608

約数の個数: 64

約数和(自身を含む): 386661600

約数和(自身を除く): 218504680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 107, 202, 214, 389, 404, 428, 505, 535, 778, 808, 856, 1010, 1070, 1556, 1945, 2020, 2140, 3112, 3890, 4040, 4280, 7780, 10807, 15560, 21614, 39289, 41623, 43228, 54035, 78578, 83246, 86456, 108070, 157156, 166492, 196445, 208115, 216140, 314312, 332984, 392890, 416230, 432280, 785780, 832460, 1571560, 1664920, 4203923, 8407846, 16815692, 21019615, 33631384, 42039230, 84078460, 168156920]

約数ペア:

[(1, 168156920), (2, 84078460), (4, 42039230), (5, 33631384), (8, 21019615), (10, 16815692), (20, 8407846), (40, 4203923), (101, 1664920), (107, 1571560), (202, 832460), (214, 785780), (389, 432280), (404, 416230), (428, 392890), (505, 332984), (535, 314312), (778, 216140), (808, 208115), (856, 196445), (1010, 166492), (1070, 157156), (1556, 108070), (1945, 86456), (2020, 83246), (2140, 78578), (3112, 54035), (3890, 43228), (4040, 41623), (4280, 39289), (7780, 21614), (10807, 15560)]