7638440

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{239}}^1$

素因数の和:314

約数の個数: 64

約数和(自身を含む): 18662400

約数和(自身を除く): 11023960

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 47, 68, 85, 94, 136, 170, 188, 235, 239, 340, 376, 470, 478, 680, 799, 940, 956, 1195, 1598, 1880, 1912, 2390, 3196, 3995, 4063, 4780, 6392, 7990, 8126, 9560, 11233, 15980, 16252, 20315, 22466, 31960, 32504, 40630, 44932, 56165, 81260, 89864, 112330, 162520, 190961, 224660, 381922, 449320, 763844, 954805, 1527688, 1909610, 3819220, 7638440]

約数ペア:

[(1, 7638440), (2, 3819220), (4, 1909610), (5, 1527688), (8, 954805), (10, 763844), (17, 449320), (20, 381922), (34, 224660), (40, 190961), (47, 162520), (68, 112330), (85, 89864), (94, 81260), (136, 56165), (170, 44932), (188, 40630), (235, 32504), (239, 31960), (340, 22466), (376, 20315), (470, 16252), (478, 15980), (680, 11233), (799, 9560), (940, 8126), (956, 7990), (1195, 6392), (1598, 4780), (1880, 4063), (1912, 3995), (2390, 3196)]