19087960

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{113}}^1$

素因数の和:268

約数の個数: 64

約数和(自身を含む): 44815680

約数和(自身を除く): 25727720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 103, 113, 164, 205, 206, 226, 328, 410, 412, 452, 515, 565, 820, 824, 904, 1030, 1130, 1640, 2060, 2260, 4120, 4223, 4520, 4633, 8446, 9266, 11639, 16892, 18532, 21115, 23165, 23278, 33784, 37064, 42230, 46330, 46556, 58195, 84460, 92660, 93112, 116390, 168920, 185320, 232780, 465560, 477199, 954398, 1908796, 2385995, 3817592, 4771990, 9543980, 19087960]

約数ペア:

[(1, 19087960), (2, 9543980), (4, 4771990), (5, 3817592), (8, 2385995), (10, 1908796), (20, 954398), (40, 477199), (41, 465560), (82, 232780), (103, 185320), (113, 168920), (164, 116390), (205, 93112), (206, 92660), (226, 84460), (328, 58195), (410, 46556), (412, 46330), (452, 42230), (515, 37064), (565, 33784), (820, 23278), (824, 23165), (904, 21115), (1030, 18532), (1130, 16892), (1640, 11639), (2060, 9266), (2260, 8446), (4120, 4633), (4223, 4520)]