12507920

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^2\times {\mathrm{541}}^1$

素因数の和:588

約数の個数: 60

約数和(自身を含む): 30949284

約数和(自身を除く): 18441364

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 289, 340, 541, 578, 680, 1082, 1156, 1360, 1445, 2164, 2312, 2705, 2890, 4328, 4624, 5410, 5780, 8656, 9197, 10820, 11560, 18394, 21640, 23120, 36788, 43280, 45985, 73576, 91970, 147152, 156349, 183940, 312698, 367880, 625396, 735760, 781745, 1250792, 1563490, 2501584, 3126980, 6253960, 12507920]

約数ペア:

[(1, 12507920), (2, 6253960), (4, 3126980), (5, 2501584), (8, 1563490), (10, 1250792), (16, 781745), (17, 735760), (20, 625396), (34, 367880), (40, 312698), (68, 183940), (80, 156349), (85, 147152), (136, 91970), (170, 73576), (272, 45985), (289, 43280), (340, 36788), (541, 23120), (578, 21640), (680, 18394), (1082, 11560), (1156, 10820), (1360, 9197), (1445, 8656), (2164, 5780), (2312, 5410), (2705, 4624), (2890, 4328)]