21631920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{173}}^1\times {\mathrm{521}}^1$

素因数の和:710

約数の個数: 80

約数和(自身を含む): 67576032

約数和(自身を除く): 45944112

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 173, 240, 346, 519, 521, 692, 865, 1038, 1042, 1384, 1563, 1730, 2076, 2084, 2595, 2605, 2768, 3126, 3460, 4152, 4168, 5190, 5210, 6252, 6920, 7815, 8304, 8336, 10380, 10420, 12504, 13840, 15630, 20760, 20840, 25008, 31260, 41520, 41680, 62520, 90133, 125040, 180266, 270399, 360532, 450665, 540798, 721064, 901330, 1081596, 1351995, 1442128, 1802660, 2163192, 2703990, 3605320, 4326384, 5407980, 7210640, 10815960, 21631920]

約数ペア:

[(1, 21631920), (2, 10815960), (3, 7210640), (4, 5407980), (5, 4326384), (6, 3605320), (8, 2703990), (10, 2163192), (12, 1802660), (15, 1442128), (16, 1351995), (20, 1081596), (24, 901330), (30, 721064), (40, 540798), (48, 450665), (60, 360532), (80, 270399), (120, 180266), (173, 125040), (240, 90133), (346, 62520), (519, 41680), (521, 41520), (692, 31260), (865, 25008), (1038, 20840), (1042, 20760), (1384, 15630), (1563, 13840), (1730, 12504), (2076, 10420), (2084, 10380), (2595, 8336), (2605, 8304), (2768, 7815), (3126, 6920), (3460, 6252), (4152, 5210), (4168, 5190)]