18271890

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1$

素因数の和:153

約数の個数: 192

約数和(自身を含む): 61641216

約数和(自身を除く): 43369326

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 13, 14, 15, 18, 21, 23, 26, 30, 35, 39, 42, 45, 46, 63, 65, 69, 70, 78, 90, 91, 97, 105, 115, 117, 126, 130, 138, 161, 182, 194, 195, 207, 210, 230, 234, 273, 291, 299, 315, 322, 345, 390, 414, 455, 483, 485, 546, 582, 585, 598, 630, 679, 690, 805, 819, 873, 897, 910, 966, 970, 1035, 1170, 1261, 1358, 1365, 1449, 1455, 1495, 1610, 1638, 1746, 1794, 2037, 2070, 2093, 2231, 2415, 2522, 2691, 2730, 2898, 2910, 2990, 3395, 3783, 4074, 4095, 4186, 4365, 4462, 4485, 4830, 5382, 6111, 6279, 6305, 6693, 6790, 7245, 7566, 8190, 8730, 8827, 8970, 10185, 10465, 11155, 11349, 12222, 12558, 12610, 13386, 13455, 14490, 15617, 17654, 18837, 18915, 20079, 20370, 20930, 22310, 22698, 26481, 26910, 29003, 30555, 31234, 31395, 33465, 37674, 37830, 40158, 44135, 46851, 52962, 56745, 58006, 61110, 62790, 66930, 78085, 79443, 87009, 88270, 93702, 94185, 100395, 113490, 132405, 140553, 145015, 156170, 158886, 174018, 188370, 200790, 203021, 234255, 261027, 264810, 281106, 290030, 397215, 406042, 435045, 468510, 522054, 609063, 702765, 794430, 870090, 1015105, 1218126, 1305135, 1405530, 1827189, 2030210, 2610270, 3045315, 3654378, 6090630, 9135945, 18271890]

約数ペア:

[(1, 18271890), (2, 9135945), (3, 6090630), (5, 3654378), (6, 3045315), (7, 2610270), (9, 2030210), (10, 1827189), (13, 1405530), (14, 1305135), (15, 1218126), (18, 1015105), (21, 870090), (23, 794430), (26, 702765), (30, 609063), (35, 522054), (39, 468510), (42, 435045), (45, 406042), (46, 397215), (63, 290030), (65, 281106), (69, 264810), (70, 261027), (78, 234255), (90, 203021), (91, 200790), (97, 188370), (105, 174018), (115, 158886), (117, 156170), (126, 145015), (130, 140553), (138, 132405), (161, 113490), (182, 100395), (194, 94185), (195, 93702), (207, 88270), (210, 87009), (230, 79443), (234, 78085), (273, 66930), (291, 62790), (299, 61110), (315, 58006), (322, 56745), (345, 52962), (390, 46851), (414, 44135), (455, 40158), (483, 37830), (485, 37674), (546, 33465), (582, 31395), (585, 31234), (598, 30555), (630, 29003), (679, 26910), (690, 26481), (805, 22698), (819, 22310), (873, 20930), (897, 20370), (910, 20079), (966, 18915), (970, 18837), (1035, 17654), (1170, 15617), (1261, 14490), (1358, 13455), (1365, 13386), (1449, 12610), (1455, 12558), (1495, 12222), (1610, 11349), (1638, 11155), (1746, 10465), (1794, 10185), (2037, 8970), (2070, 8827), (2093, 8730), (2231, 8190), (2415, 7566), (2522, 7245), (2691, 6790), (2730, 6693), (2898, 6305), (2910, 6279), (2990, 6111), (3395, 5382), (3783, 4830), (4074, 4485), (4095, 4462), (4186, 4365)]