380028920

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{133813}}^1$

素因数の和:133895

約数の個数: 32

約数和(自身を含む): 867114720

約数和(自身を除く): 487085800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 133813, 267626, 535252, 669065, 1070504, 1338130, 2676260, 5352520, 9500723, 19001446, 38002892, 47503615, 76005784, 95007230, 190014460, 380028920]

約数ペア:

[(1, 380028920), (2, 190014460), (4, 95007230), (5, 76005784), (8, 47503615), (10, 38002892), (20, 19001446), (40, 9500723), (71, 5352520), (142, 2676260), (284, 1338130), (355, 1070504), (568, 669065), (710, 535252), (1420, 267626), (2840, 133813)]