642010

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1$

素因数の和:166

約数の個数: 32

約数和(自身を含む): 1267200

約数和(自身を除く): 625190

約数列:

[1, 2, 5, 10, 19, 31, 38, 62, 95, 109, 155, 190, 218, 310, 545, 589, 1090, 1178, 2071, 2945, 3379, 4142, 5890, 6758, 10355, 16895, 20710, 33790, 64201, 128402, 321005, 642010]

約数ペア:

[(1, 642010), (2, 321005), (5, 128402), (10, 64201), (19, 33790), (31, 20710), (38, 16895), (62, 10355), (95, 6758), (109, 5890), (155, 4142), (190, 3379), (218, 2945), (310, 2071), (545, 1178), (589, 1090)]