9999400

素因数分解:

$2^3\times 5^2\times {\mathrm{17}}^2\times {\mathrm{173}}^1$

素因数の和:223

約数の個数: 72

約数和(自身を含む): 24839370

約数和(自身を除く): 14839970

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 25, 34, 40, 50, 68, 85, 100, 136, 170, 173, 200, 289, 340, 346, 425, 578, 680, 692, 850, 865, 1156, 1384, 1445, 1700, 1730, 2312, 2890, 2941, 3400, 3460, 4325, 5780, 5882, 6920, 7225, 8650, 11560, 11764, 14450, 14705, 17300, 23528, 28900, 29410, 34600, 49997, 57800, 58820, 73525, 99994, 117640, 147050, 199988, 249985, 294100, 399976, 499970, 588200, 999940, 1249925, 1999880, 2499850, 4999700, 9999400]

約数ペア:

[(1, 9999400), (2, 4999700), (4, 2499850), (5, 1999880), (8, 1249925), (10, 999940), (17, 588200), (20, 499970), (25, 399976), (34, 294100), (40, 249985), (50, 199988), (68, 147050), (85, 117640), (100, 99994), (136, 73525), (170, 58820), (173, 57800), (200, 49997), (289, 34600), (340, 29410), (346, 28900), (425, 23528), (578, 17300), (680, 14705), (692, 14450), (850, 11764), (865, 11560), (1156, 8650), (1384, 7225), (1445, 6920), (1700, 5882), (1730, 5780), (2312, 4325), (2890, 3460), (2941, 3400)]