204538900

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{1523}}^1$

素因数の和:1633

約数の個数: 72

約数和(自身を含む): 476219520

約数和(自身を除く): 271680620

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 79, 85, 100, 158, 170, 316, 340, 395, 425, 790, 850, 1343, 1523, 1580, 1700, 1975, 2686, 3046, 3950, 5372, 6092, 6715, 7615, 7900, 13430, 15230, 25891, 26860, 30460, 33575, 38075, 51782, 67150, 76150, 103564, 120317, 129455, 134300, 152300, 240634, 258910, 481268, 517820, 601585, 647275, 1203170, 1294550, 2045389, 2406340, 2589100, 3007925, 4090778, 6015850, 8181556, 10226945, 12031700, 20453890, 40907780, 51134725, 102269450, 204538900]

約数ペア:

[(1, 204538900), (2, 102269450), (4, 51134725), (5, 40907780), (10, 20453890), (17, 12031700), (20, 10226945), (25, 8181556), (34, 6015850), (50, 4090778), (68, 3007925), (79, 2589100), (85, 2406340), (100, 2045389), (158, 1294550), (170, 1203170), (316, 647275), (340, 601585), (395, 517820), (425, 481268), (790, 258910), (850, 240634), (1343, 152300), (1523, 134300), (1580, 129455), (1700, 120317), (1975, 103564), (2686, 76150), (3046, 67150), (3950, 51782), (5372, 38075), (6092, 33575), (6715, 30460), (7615, 26860), (7900, 25891), (13430, 15230)]