619888

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:121

約数の個数: 40

約数和(自身を含む): 1325808

約数和(自身を除く): 705920

約数列:

[1, 2, 4, 8, 16, 17, 34, 43, 53, 68, 86, 106, 136, 172, 212, 272, 344, 424, 688, 731, 848, 901, 1462, 1802, 2279, 2924, 3604, 4558, 5848, 7208, 9116, 11696, 14416, 18232, 36464, 38743, 77486, 154972, 309944, 619888]

約数ペア:

[(1, 619888), (2, 309944), (4, 154972), (8, 77486), (16, 38743), (17, 36464), (34, 18232), (43, 14416), (53, 11696), (68, 9116), (86, 7208), (106, 5848), (136, 4558), (172, 3604), (212, 2924), (272, 2279), (344, 1802), (424, 1462), (688, 901), (731, 848)]