31999420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{787}}^1$

素因数の和:922

約数の個数: 48

約数和(自身を含む): 71487360

約数和(自身を除く): 39487940

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 107, 190, 214, 380, 428, 535, 787, 1070, 1574, 2033, 2140, 3148, 3935, 4066, 7870, 8132, 10165, 14953, 15740, 20330, 29906, 40660, 59812, 74765, 84209, 149530, 168418, 299060, 336836, 421045, 842090, 1599971, 1684180, 3199942, 6399884, 7999855, 15999710, 31999420]

約数ペア:

[(1, 31999420), (2, 15999710), (4, 7999855), (5, 6399884), (10, 3199942), (19, 1684180), (20, 1599971), (38, 842090), (76, 421045), (95, 336836), (107, 299060), (190, 168418), (214, 149530), (380, 84209), (428, 74765), (535, 59812), (787, 40660), (1070, 29906), (1574, 20330), (2033, 15740), (2140, 14953), (3148, 10165), (3935, 8132), (4066, 7870)]