20571870

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1$

素因数の和:250

約数の個数: 128

約数和(自身を含む): 60341760

約数和(自身を除く): 39769890

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 17, 19, 22, 30, 33, 34, 38, 51, 55, 57, 66, 85, 95, 102, 110, 114, 165, 170, 187, 190, 193, 209, 255, 285, 323, 330, 374, 386, 418, 510, 561, 570, 579, 627, 646, 935, 965, 969, 1045, 1122, 1158, 1254, 1615, 1870, 1930, 1938, 2090, 2123, 2805, 2895, 3135, 3230, 3281, 3553, 3667, 4246, 4845, 5610, 5790, 6270, 6369, 6562, 7106, 7334, 9690, 9843, 10615, 10659, 11001, 12738, 16405, 17765, 18335, 19686, 21230, 21318, 22002, 31845, 32810, 35530, 36091, 36670, 40337, 49215, 53295, 55005, 62339, 63690, 72182, 80674, 98430, 106590, 108273, 110010, 121011, 124678, 180455, 187017, 201685, 216546, 242022, 311695, 360910, 374034, 403370, 541365, 605055, 623390, 685729, 935085, 1082730, 1210110, 1371458, 1870170, 2057187, 3428645, 4114374, 6857290, 10285935, 20571870]

約数ペア:

[(1, 20571870), (2, 10285935), (3, 6857290), (5, 4114374), (6, 3428645), (10, 2057187), (11, 1870170), (15, 1371458), (17, 1210110), (19, 1082730), (22, 935085), (30, 685729), (33, 623390), (34, 605055), (38, 541365), (51, 403370), (55, 374034), (57, 360910), (66, 311695), (85, 242022), (95, 216546), (102, 201685), (110, 187017), (114, 180455), (165, 124678), (170, 121011), (187, 110010), (190, 108273), (193, 106590), (209, 98430), (255, 80674), (285, 72182), (323, 63690), (330, 62339), (374, 55005), (386, 53295), (418, 49215), (510, 40337), (561, 36670), (570, 36091), (579, 35530), (627, 32810), (646, 31845), (935, 22002), (965, 21318), (969, 21230), (1045, 19686), (1122, 18335), (1158, 17765), (1254, 16405), (1615, 12738), (1870, 11001), (1930, 10659), (1938, 10615), (2090, 9843), (2123, 9690), (2805, 7334), (2895, 7106), (3135, 6562), (3230, 6369), (3281, 6270), (3553, 5790), (3667, 5610), (4246, 4845)]