212057960

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{233}}^1\times {\mathrm{373}}^1$

素因数の和:678

約数の個数: 64

約数和(自身を含む): 488339280

約数和(自身を除く): 276281320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 233, 244, 305, 373, 466, 488, 610, 746, 932, 1165, 1220, 1492, 1864, 1865, 2330, 2440, 2984, 3730, 4660, 7460, 9320, 14213, 14920, 22753, 28426, 45506, 56852, 71065, 86909, 91012, 113704, 113765, 142130, 173818, 182024, 227530, 284260, 347636, 434545, 455060, 568520, 695272, 869090, 910120, 1738180, 3476360, 5301449, 10602898, 21205796, 26507245, 42411592, 53014490, 106028980, 212057960]

約数ペア:

[(1, 212057960), (2, 106028980), (4, 53014490), (5, 42411592), (8, 26507245), (10, 21205796), (20, 10602898), (40, 5301449), (61, 3476360), (122, 1738180), (233, 910120), (244, 869090), (305, 695272), (373, 568520), (466, 455060), (488, 434545), (610, 347636), (746, 284260), (932, 227530), (1165, 182024), (1220, 173818), (1492, 142130), (1864, 113765), (1865, 113704), (2330, 91012), (2440, 86909), (2984, 71065), (3730, 56852), (4660, 45506), (7460, 28426), (9320, 22753), (14213, 14920)]