396366920

素因数分解:

$2^3\times 5^1\times {\mathrm{1621}}^1\times {\mathrm{6113}}^1$

素因数の和:7745

約数の個数: 32

約数和(自身を含む): 892521720

約数和(自身を除く): 496154800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1621, 3242, 6113, 6484, 8105, 12226, 12968, 16210, 24452, 30565, 32420, 48904, 61130, 64840, 122260, 244520, 9909173, 19818346, 39636692, 49545865, 79273384, 99091730, 198183460, 396366920]

約数ペア:

[(1, 396366920), (2, 198183460), (4, 99091730), (5, 79273384), (8, 49545865), (10, 39636692), (20, 19818346), (40, 9909173), (1621, 244520), (3242, 122260), (6113, 64840), (6484, 61130), (8105, 48904), (12226, 32420), (12968, 30565), (16210, 24452)]