20480018

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{349}}^1$

素因数の和:462

約数の個数: 32

約数和(自身を含む): 34633200

約数和(自身を除く): 14153182

約数列:

[1, 2, 13, 26, 37, 61, 74, 122, 349, 481, 698, 793, 962, 1586, 2257, 4514, 4537, 9074, 12913, 21289, 25826, 29341, 42578, 58682, 167869, 276757, 335738, 553514, 787693, 1575386, 10240009, 20480018]

約数ペア:

[(1, 20480018), (2, 10240009), (13, 1575386), (26, 787693), (37, 553514), (61, 335738), (74, 276757), (122, 167869), (349, 58682), (481, 42578), (698, 29341), (793, 25826), (962, 21289), (1586, 12913), (2257, 9074), (4514, 4537)]