20249997014025

素因数分解:

$3^2\times 5^2\times {\mathrm{191}}^1\times {\mathrm{1109}}^1\times {\mathrm{424891}}^1$

素因数の和:426207

約数の個数: 72

約数和(自身を含む): 36492852165120

約数和(自身を除く): 16242855151095

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 191, 225, 573, 955, 1109, 1719, 2865, 3327, 4775, 5545, 8595, 9981, 14325, 16635, 27725, 42975, 49905, 83175, 211819, 249525, 424891, 635457, 1059095, 1274673, 1906371, 2124455, 3177285, 3824019, 5295475, 6373365, 9531855, 10622275, 15886425, 19120095, 31866825, 47659275, 81154181, 95600475, 243462543, 405770905, 471204119, 730387629, 1217312715, 1413612357, 2028854525, 2356020595, 3651938145, 4240837071, 6086563575, 7068061785, 11780102975, 18259690725, 21204185355, 35340308925, 89999986729, 106020926775, 269999960187, 449999933645, 809999880561, 1349999800935, 2249999668225, 4049999402805, 6749999004675, 20249997014025]

約数ペア:

[(1, 20249997014025), (3, 6749999004675), (5, 4049999402805), (9, 2249999668225), (15, 1349999800935), (25, 809999880561), (45, 449999933645), (75, 269999960187), (191, 106020926775), (225, 89999986729), (573, 35340308925), (955, 21204185355), (1109, 18259690725), (1719, 11780102975), (2865, 7068061785), (3327, 6086563575), (4775, 4240837071), (5545, 3651938145), (8595, 2356020595), (9981, 2028854525), (14325, 1413612357), (16635, 1217312715), (27725, 730387629), (42975, 471204119), (49905, 405770905), (83175, 243462543), (211819, 95600475), (249525, 81154181), (424891, 47659275), (635457, 31866825), (1059095, 19120095), (1274673, 15886425), (1906371, 10622275), (2124455, 9531855), (3177285, 6373365), (3824019, 5295475)]