28655220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{3947}}^1$

素因数の和:3981

約数の個数: 72

約数和(自身を含む): 88214112

約数和(自身を除く): 59558892

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 121, 132, 165, 220, 242, 330, 363, 484, 605, 660, 726, 1210, 1452, 1815, 2420, 3630, 3947, 7260, 7894, 11841, 15788, 19735, 23682, 39470, 43417, 47364, 59205, 78940, 86834, 118410, 130251, 173668, 217085, 236820, 260502, 434170, 477587, 521004, 651255, 868340, 955174, 1302510, 1432761, 1910348, 2387935, 2605020, 2865522, 4775870, 5731044, 7163805, 9551740, 14327610, 28655220]

約数ペア:

[(1, 28655220), (2, 14327610), (3, 9551740), (4, 7163805), (5, 5731044), (6, 4775870), (10, 2865522), (11, 2605020), (12, 2387935), (15, 1910348), (20, 1432761), (22, 1302510), (30, 955174), (33, 868340), (44, 651255), (55, 521004), (60, 477587), (66, 434170), (110, 260502), (121, 236820), (132, 217085), (165, 173668), (220, 130251), (242, 118410), (330, 86834), (363, 78940), (484, 59205), (605, 47364), (660, 43417), (726, 39470), (1210, 23682), (1452, 19735), (1815, 15788), (2420, 11841), (3630, 7894), (3947, 7260)]