145216820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{19571}}^1$

素因数の和:19640

約数の個数: 48

約数和(自身を含む): 355114368

約数和(自身を除く): 209897548

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 53, 70, 106, 140, 212, 265, 371, 530, 742, 1060, 1484, 1855, 3710, 7420, 19571, 39142, 78284, 97855, 136997, 195710, 273994, 391420, 547988, 684985, 1037263, 1369970, 2074526, 2739940, 4149052, 5186315, 7260841, 10372630, 14521682, 20745260, 29043364, 36304205, 72608410, 145216820]

約数ペア:

[(1, 145216820), (2, 72608410), (4, 36304205), (5, 29043364), (7, 20745260), (10, 14521682), (14, 10372630), (20, 7260841), (28, 5186315), (35, 4149052), (53, 2739940), (70, 2074526), (106, 1369970), (140, 1037263), (212, 684985), (265, 547988), (371, 391420), (530, 273994), (742, 195710), (1060, 136997), (1484, 97855), (1855, 78284), (3710, 39142), (7420, 19571)]