640952270

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^2\times {\mathrm{911}}^1$

素因数の和:990

約数の個数: 96

約数和(自身を含む): 1452487680

約数和(自身を除く): 811535410

約数列:

[1, 2, 5, 7, 10, 14, 19, 23, 35, 38, 46, 70, 95, 115, 133, 161, 190, 230, 266, 322, 437, 529, 665, 805, 874, 911, 1058, 1330, 1610, 1822, 2185, 2645, 3059, 3703, 4370, 4555, 5290, 6118, 6377, 7406, 9110, 10051, 12754, 15295, 17309, 18515, 20102, 20953, 30590, 31885, 34618, 37030, 41906, 50255, 63770, 70357, 86545, 100510, 104765, 121163, 140714, 146671, 173090, 209530, 242326, 293342, 351785, 398107, 481919, 605815, 703570, 733355, 796214, 963838, 1211630, 1466710, 1990535, 2409595, 2786749, 3373433, 3981070, 4819190, 5573498, 6746866, 9156461, 13933745, 16867165, 18312922, 27867490, 33734330, 45782305, 64095227, 91564610, 128190454, 320476135, 640952270]

約数ペア:

[(1, 640952270), (2, 320476135), (5, 128190454), (7, 91564610), (10, 64095227), (14, 45782305), (19, 33734330), (23, 27867490), (35, 18312922), (38, 16867165), (46, 13933745), (70, 9156461), (95, 6746866), (115, 5573498), (133, 4819190), (161, 3981070), (190, 3373433), (230, 2786749), (266, 2409595), (322, 1990535), (437, 1466710), (529, 1211630), (665, 963838), (805, 796214), (874, 733355), (911, 703570), (1058, 605815), (1330, 481919), (1610, 398107), (1822, 351785), (2185, 293342), (2645, 242326), (3059, 209530), (3703, 173090), (4370, 146671), (4555, 140714), (5290, 121163), (6118, 104765), (6377, 100510), (7406, 86545), (9110, 70357), (10051, 63770), (12754, 50255), (15295, 41906), (17309, 37030), (18515, 34618), (20102, 31885), (20953, 30590)]