7999520

素因数分解:

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

素因数の和:222

約数の個数: 72

約数和(自身を含む): 20192004

約数和(自身を除く): 12192484

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 160, 170, 173, 272, 289, 340, 346, 544, 578, 680, 692, 865, 1156, 1360, 1384, 1445, 1730, 2312, 2720, 2768, 2890, 2941, 3460, 4624, 5536, 5780, 5882, 6920, 9248, 11560, 11764, 13840, 14705, 23120, 23528, 27680, 29410, 46240, 47056, 49997, 58820, 94112, 99994, 117640, 199988, 235280, 249985, 399976, 470560, 499970, 799952, 999940, 1599904, 1999880, 3999760, 7999520]

約数ペア:

[(1, 7999520), (2, 3999760), (4, 1999880), (5, 1599904), (8, 999940), (10, 799952), (16, 499970), (17, 470560), (20, 399976), (32, 249985), (34, 235280), (40, 199988), (68, 117640), (80, 99994), (85, 94112), (136, 58820), (160, 49997), (170, 47056), (173, 46240), (272, 29410), (289, 27680), (340, 23528), (346, 23120), (544, 14705), (578, 13840), (680, 11764), (692, 11560), (865, 9248), (1156, 6920), (1360, 5882), (1384, 5780), (1445, 5536), (1730, 4624), (2312, 3460), (2720, 2941), (2768, 2890)]