51213840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{213391}}^1$

素因数の和:213407

約数の個数: 40

約数和(自身を含む): 158763648

約数和(自身を除く): 107549808

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 213391, 426782, 640173, 853564, 1066955, 1280346, 1707128, 2133910, 2560692, 3200865, 3414256, 4267820, 5121384, 6401730, 8535640, 10242768, 12803460, 17071280, 25606920, 51213840]

約数ペア:

[(1, 51213840), (2, 25606920), (3, 17071280), (4, 12803460), (5, 10242768), (6, 8535640), (8, 6401730), (10, 5121384), (12, 4267820), (15, 3414256), (16, 3200865), (20, 2560692), (24, 2133910), (30, 1707128), (40, 1280346), (48, 1066955), (60, 853564), (80, 640173), (120, 426782), (240, 213391)]