51561990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{18481}}^1$

素因数の和:18525

約数の個数: 48

約数和(自身を含む): 138393216

約数和(自身を除く): 86831226

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 31, 45, 62, 90, 93, 155, 186, 279, 310, 465, 558, 930, 1395, 2790, 18481, 36962, 55443, 92405, 110886, 166329, 184810, 277215, 332658, 554430, 572911, 831645, 1145822, 1663290, 1718733, 2864555, 3437466, 5156199, 5729110, 8593665, 10312398, 17187330, 25780995, 51561990]

約数ペア:

[(1, 51561990), (2, 25780995), (3, 17187330), (5, 10312398), (6, 8593665), (9, 5729110), (10, 5156199), (15, 3437466), (18, 2864555), (30, 1718733), (31, 1663290), (45, 1145822), (62, 831645), (90, 572911), (93, 554430), (155, 332658), (186, 277215), (279, 184810), (310, 166329), (465, 110886), (558, 92405), (930, 55443), (1395, 36962), (2790, 18481)]