129741820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{16097}}^1$

素因数の和:16150

約数の個数: 48

約数和(自身を含む): 302899968

約数和(自身を除く): 173158148

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 4030, 8060, 16097, 32194, 64388, 80485, 160970, 209261, 321940, 418522, 499007, 837044, 998014, 1046305, 1996028, 2092610, 2495035, 4185220, 4990070, 6487091, 9980140, 12974182, 25948364, 32435455, 64870910, 129741820]

約数ペア:

[(1, 129741820), (2, 64870910), (4, 32435455), (5, 25948364), (10, 12974182), (13, 9980140), (20, 6487091), (26, 4990070), (31, 4185220), (52, 2495035), (62, 2092610), (65, 1996028), (124, 1046305), (130, 998014), (155, 837044), (260, 499007), (310, 418522), (403, 321940), (620, 209261), (806, 160970), (1612, 80485), (2015, 64388), (4030, 32194), (8060, 16097)]