81645010

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{2557}}^1$

素因数の和:2698

約数の個数: 32

約数和(自身を含む): 153234432

約数和(自身を除く): 71589422

約数列:

[1, 2, 5, 10, 31, 62, 103, 155, 206, 310, 515, 1030, 2557, 3193, 5114, 6386, 12785, 15965, 25570, 31930, 79267, 158534, 263371, 396335, 526742, 792670, 1316855, 2633710, 8164501, 16329002, 40822505, 81645010]

約数ペア:

[(1, 81645010), (2, 40822505), (5, 16329002), (10, 8164501), (31, 2633710), (62, 1316855), (103, 792670), (155, 526742), (206, 396335), (310, 263371), (515, 158534), (1030, 79267), (2557, 31930), (3193, 25570), (5114, 15965), (6386, 12785)]