16988950

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1$

素因数の和:142

約数の個数: 96

約数和(自身を含む): 38568960

約数和(自身を除く): 21580010

約数列:

[1, 2, 5, 10, 11, 17, 22, 23, 25, 34, 46, 50, 55, 79, 85, 110, 115, 158, 170, 187, 230, 253, 275, 374, 391, 395, 425, 506, 550, 575, 782, 790, 850, 869, 935, 1150, 1265, 1343, 1738, 1817, 1870, 1955, 1975, 2530, 2686, 3634, 3910, 3950, 4301, 4345, 4675, 6325, 6715, 8602, 8690, 9085, 9350, 9775, 12650, 13430, 14773, 18170, 19550, 19987, 21505, 21725, 29546, 30889, 33575, 39974, 43010, 43450, 45425, 61778, 67150, 73865, 90850, 99935, 107525, 147730, 154445, 199870, 215050, 308890, 339779, 369325, 499675, 679558, 738650, 772225, 999350, 1544450, 1698895, 3397790, 8494475, 16988950]

約数ペア:

[(1, 16988950), (2, 8494475), (5, 3397790), (10, 1698895), (11, 1544450), (17, 999350), (22, 772225), (23, 738650), (25, 679558), (34, 499675), (46, 369325), (50, 339779), (55, 308890), (79, 215050), (85, 199870), (110, 154445), (115, 147730), (158, 107525), (170, 99935), (187, 90850), (230, 73865), (253, 67150), (275, 61778), (374, 45425), (391, 43450), (395, 43010), (425, 39974), (506, 33575), (550, 30889), (575, 29546), (782, 21725), (790, 21505), (850, 19987), (869, 19550), (935, 18170), (1150, 14773), (1265, 13430), (1343, 12650), (1738, 9775), (1817, 9350), (1870, 9085), (1955, 8690), (1975, 8602), (2530, 6715), (2686, 6325), (3634, 4675), (3910, 4345), (3950, 4301)]