78141560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{1873}}^1$

素因数の和:2040

約数の個数: 64

約数和(自身を含む): 202392000

約数和(自身を除く): 124250440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 149, 280, 298, 596, 745, 1043, 1192, 1490, 1873, 2086, 2980, 3746, 4172, 5215, 5960, 7492, 8344, 9365, 10430, 13111, 14984, 18730, 20860, 26222, 37460, 41720, 52444, 65555, 74920, 104888, 131110, 262220, 279077, 524440, 558154, 1116308, 1395385, 1953539, 2232616, 2790770, 3907078, 5581540, 7814156, 9767695, 11163080, 15628312, 19535390, 39070780, 78141560]

約数ペア:

[(1, 78141560), (2, 39070780), (4, 19535390), (5, 15628312), (7, 11163080), (8, 9767695), (10, 7814156), (14, 5581540), (20, 3907078), (28, 2790770), (35, 2232616), (40, 1953539), (56, 1395385), (70, 1116308), (140, 558154), (149, 524440), (280, 279077), (298, 262220), (596, 131110), (745, 104888), (1043, 74920), (1192, 65555), (1490, 52444), (1873, 41720), (2086, 37460), (2980, 26222), (3746, 20860), (4172, 18730), (5215, 14984), (5960, 13111), (7492, 10430), (8344, 9365)]