12481820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{787}}^1$

素因数の和:870

約数の個数: 48

約数和(自身を含む): 28727328

約数和(自身を除く): 16245508

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 61, 65, 122, 130, 244, 260, 305, 610, 787, 793, 1220, 1574, 1586, 3148, 3172, 3935, 3965, 7870, 7930, 10231, 15740, 15860, 20462, 40924, 48007, 51155, 96014, 102310, 192028, 204620, 240035, 480070, 624091, 960140, 1248182, 2496364, 3120455, 6240910, 12481820]

約数ペア:

[(1, 12481820), (2, 6240910), (4, 3120455), (5, 2496364), (10, 1248182), (13, 960140), (20, 624091), (26, 480070), (52, 240035), (61, 204620), (65, 192028), (122, 102310), (130, 96014), (244, 51155), (260, 48007), (305, 40924), (610, 20462), (787, 15860), (793, 15740), (1220, 10231), (1574, 7930), (1586, 7870), (3148, 3965), (3172, 3935)]