20536120

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{4243}}^1$

素因数の和:4276

約数の個数: 48

約数和(自身を含む): 50800680

約数和(自身を除く): 30264560

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 484, 605, 968, 1210, 2420, 4243, 4840, 8486, 16972, 21215, 33944, 42430, 46673, 84860, 93346, 169720, 186692, 233365, 373384, 466730, 513403, 933460, 1026806, 1866920, 2053612, 2567015, 4107224, 5134030, 10268060, 20536120]

約数ペア:

[(1, 20536120), (2, 10268060), (4, 5134030), (5, 4107224), (8, 2567015), (10, 2053612), (11, 1866920), (20, 1026806), (22, 933460), (40, 513403), (44, 466730), (55, 373384), (88, 233365), (110, 186692), (121, 169720), (220, 93346), (242, 84860), (440, 46673), (484, 42430), (605, 33944), (968, 21215), (1210, 16972), (2420, 8486), (4243, 4840)]