81163170

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{257}}^1$

素因数の和:321

約数の個数: 144

約数和(自身を含む): 240884280

約数和(自身を除く): 159721110

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 29, 30, 33, 45, 55, 58, 66, 87, 90, 99, 110, 121, 145, 165, 174, 198, 242, 257, 261, 290, 319, 330, 363, 435, 495, 514, 522, 605, 638, 726, 771, 870, 957, 990, 1089, 1210, 1285, 1305, 1542, 1595, 1815, 1914, 2178, 2313, 2570, 2610, 2827, 2871, 3190, 3509, 3630, 3855, 4626, 4785, 5445, 5654, 5742, 7018, 7453, 7710, 8481, 9570, 10527, 10890, 11565, 14135, 14355, 14906, 16962, 17545, 21054, 22359, 23130, 25443, 28270, 28710, 31097, 31581, 35090, 37265, 42405, 44718, 50886, 52635, 62194, 63162, 67077, 74530, 81983, 84810, 93291, 105270, 111795, 127215, 134154, 155485, 157905, 163966, 186582, 223590, 245949, 254430, 279873, 310970, 315810, 335385, 409915, 466455, 491898, 559746, 670770, 737847, 819830, 901813, 932910, 1229745, 1399365, 1475694, 1803626, 2459490, 2705439, 2798730, 3689235, 4509065, 5410878, 7378470, 8116317, 9018130, 13527195, 16232634, 27054390, 40581585, 81163170]

約数ペア:

[(1, 81163170), (2, 40581585), (3, 27054390), (5, 16232634), (6, 13527195), (9, 9018130), (10, 8116317), (11, 7378470), (15, 5410878), (18, 4509065), (22, 3689235), (29, 2798730), (30, 2705439), (33, 2459490), (45, 1803626), (55, 1475694), (58, 1399365), (66, 1229745), (87, 932910), (90, 901813), (99, 819830), (110, 737847), (121, 670770), (145, 559746), (165, 491898), (174, 466455), (198, 409915), (242, 335385), (257, 315810), (261, 310970), (290, 279873), (319, 254430), (330, 245949), (363, 223590), (435, 186582), (495, 163966), (514, 157905), (522, 155485), (605, 134154), (638, 127215), (726, 111795), (771, 105270), (870, 93291), (957, 84810), (990, 81983), (1089, 74530), (1210, 67077), (1285, 63162), (1305, 62194), (1542, 52635), (1595, 50886), (1815, 44718), (1914, 42405), (2178, 37265), (2313, 35090), (2570, 31581), (2610, 31097), (2827, 28710), (2871, 28270), (3190, 25443), (3509, 23130), (3630, 22359), (3855, 21054), (4626, 17545), (4785, 16962), (5445, 14906), (5654, 14355), (5742, 14135), (7018, 11565), (7453, 10890), (7710, 10527), (8481, 9570)]