72255280

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{12721}}^1$

素因数の和:12805

約数の個数: 40

約数和(自身を含む): 170373024

約数和(自身を除く): 98117744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 12721, 25442, 50884, 63605, 101768, 127210, 203536, 254420, 508840, 903191, 1017680, 1806382, 3612764, 4515955, 7225528, 9031910, 14451056, 18063820, 36127640, 72255280]

約数ペア:

[(1, 72255280), (2, 36127640), (4, 18063820), (5, 14451056), (8, 9031910), (10, 7225528), (16, 4515955), (20, 3612764), (40, 1806382), (71, 1017680), (80, 903191), (142, 508840), (284, 254420), (355, 203536), (568, 127210), (710, 101768), (1136, 63605), (1420, 50884), (2840, 25442), (5680, 12721)]