20474430

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{163}}^1$

素因数の和:305

約数の個数: 64

約数和(自身を含む): 51010560

約数和(自身を除く): 30536130

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 53, 79, 106, 158, 159, 163, 237, 265, 318, 326, 395, 474, 489, 530, 790, 795, 815, 978, 1185, 1590, 1630, 2370, 2445, 4187, 4890, 8374, 8639, 12561, 12877, 17278, 20935, 25122, 25754, 25917, 38631, 41870, 43195, 51834, 62805, 64385, 77262, 86390, 125610, 128770, 129585, 193155, 259170, 386310, 682481, 1364962, 2047443, 3412405, 4094886, 6824810, 10237215, 20474430]

約数ペア:

[(1, 20474430), (2, 10237215), (3, 6824810), (5, 4094886), (6, 3412405), (10, 2047443), (15, 1364962), (30, 682481), (53, 386310), (79, 259170), (106, 193155), (158, 129585), (159, 128770), (163, 125610), (237, 86390), (265, 77262), (318, 64385), (326, 62805), (395, 51834), (474, 43195), (489, 41870), (530, 38631), (790, 25917), (795, 25754), (815, 25122), (978, 20935), (1185, 17278), (1590, 12877), (1630, 12561), (2370, 8639), (2445, 8374), (4187, 4890)]