398480

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{293}}^1$

素因数の和:323

約数の個数: 40

約数和(自身を含む): 984312

約数和(自身を除く): 585832

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 293, 340, 586, 680, 1172, 1360, 1465, 2344, 2930, 4688, 4981, 5860, 9962, 11720, 19924, 23440, 24905, 39848, 49810, 79696, 99620, 199240, 398480]

約数ペア:

[(1, 398480), (2, 199240), (4, 99620), (5, 79696), (8, 49810), (10, 39848), (16, 24905), (17, 23440), (20, 19924), (34, 11720), (40, 9962), (68, 5860), (80, 4981), (85, 4688), (136, 2930), (170, 2344), (272, 1465), (293, 1360), (340, 1172), (586, 680)]