64443440

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{42397}}^1$

素因数の和:42429

約数の個数: 40

約数和(自身を含む): 157720560

約数和(自身を除く): 93277120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 42397, 84794, 169588, 211985, 339176, 423970, 678352, 805543, 847940, 1611086, 1695880, 3222172, 3391760, 4027715, 6444344, 8055430, 12888688, 16110860, 32221720, 64443440]

約数ペア:

[(1, 64443440), (2, 32221720), (4, 16110860), (5, 12888688), (8, 8055430), (10, 6444344), (16, 4027715), (19, 3391760), (20, 3222172), (38, 1695880), (40, 1611086), (76, 847940), (80, 805543), (95, 678352), (152, 423970), (190, 339176), (304, 211985), (380, 169588), (760, 84794), (1520, 42397)]