19309960

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{389}}^1$

素因数の和:490

約数の個数: 64

約数和(自身を含む): 46753200

約数和(自身を除く): 27443240

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 73, 85, 136, 146, 170, 292, 340, 365, 389, 584, 680, 730, 778, 1241, 1460, 1556, 1945, 2482, 2920, 3112, 3890, 4964, 6205, 6613, 7780, 9928, 12410, 13226, 15560, 24820, 26452, 28397, 33065, 49640, 52904, 56794, 66130, 113588, 132260, 141985, 227176, 264520, 283970, 482749, 567940, 965498, 1135880, 1930996, 2413745, 3861992, 4827490, 9654980, 19309960]

約数ペア:

[(1, 19309960), (2, 9654980), (4, 4827490), (5, 3861992), (8, 2413745), (10, 1930996), (17, 1135880), (20, 965498), (34, 567940), (40, 482749), (68, 283970), (73, 264520), (85, 227176), (136, 141985), (146, 132260), (170, 113588), (292, 66130), (340, 56794), (365, 52904), (389, 49640), (584, 33065), (680, 28397), (730, 26452), (778, 24820), (1241, 15560), (1460, 13226), (1556, 12410), (1945, 9928), (2482, 7780), (2920, 6613), (3112, 6205), (3890, 4964)]