81932516

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{409}}^1\times {\mathrm{821}}^1$

素因数の和:1295

約数の個数: 24

約数和(自身を含む): 146266680

約数和(自身を除く): 64334164

約数列:

[1, 2, 4, 61, 122, 244, 409, 818, 821, 1636, 1642, 3284, 24949, 49898, 50081, 99796, 100162, 200324, 335789, 671578, 1343156, 20483129, 40966258, 81932516]

約数ペア:

[(1, 81932516), (2, 40966258), (4, 20483129), (61, 1343156), (122, 671578), (244, 335789), (409, 200324), (818, 100162), (821, 99796), (1636, 50081), (1642, 49898), (3284, 24949)]