17990320

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{4243}}^1$

素因数の和:4309

約数の個数: 40

約数和(自身を含む): 42626736

約数和(自身を除く): 24636416

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120, 4240, 4243, 8486, 16972, 21215, 33944, 42430, 67888, 84860, 169720, 224879, 339440, 449758, 899516, 1124395, 1799032, 2248790, 3598064, 4497580, 8995160, 17990320]

約数ペア:

[(1, 17990320), (2, 8995160), (4, 4497580), (5, 3598064), (8, 2248790), (10, 1799032), (16, 1124395), (20, 899516), (40, 449758), (53, 339440), (80, 224879), (106, 169720), (212, 84860), (265, 67888), (424, 42430), (530, 33944), (848, 21215), (1060, 16972), (2120, 8486), (4240, 4243)]