19215708710

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^2\times {\mathrm{43991}}^1$

素因数の和:44058

約数の個数: 72

約数和(自身を含む): 40125719088

約数和(自身を除く): 20910010378

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 121, 190, 209, 242, 361, 418, 605, 722, 1045, 1210, 1805, 2090, 2299, 3610, 3971, 4598, 7942, 11495, 19855, 22990, 39710, 43681, 43991, 87362, 87982, 218405, 219955, 436810, 439910, 483901, 835829, 967802, 1671658, 2419505, 4179145, 4839010, 5322911, 8358290, 9194119, 10645822, 15880751, 18388238, 26614555, 31761502, 45970595, 53229110, 79403755, 91941190, 101135309, 158807510, 174688261, 202270618, 349376522, 505676545, 873441305, 1011353090, 1746882610, 1921570871, 3843141742, 9607854355, 19215708710]

約数ペア:

[(1, 19215708710), (2, 9607854355), (5, 3843141742), (10, 1921570871), (11, 1746882610), (19, 1011353090), (22, 873441305), (38, 505676545), (55, 349376522), (95, 202270618), (110, 174688261), (121, 158807510), (190, 101135309), (209, 91941190), (242, 79403755), (361, 53229110), (418, 45970595), (605, 31761502), (722, 26614555), (1045, 18388238), (1210, 15880751), (1805, 10645822), (2090, 9194119), (2299, 8358290), (3610, 5322911), (3971, 4839010), (4598, 4179145), (7942, 2419505), (11495, 1671658), (19855, 967802), (22990, 835829), (39710, 483901), (43681, 439910), (43991, 436810), (87362, 219955), (87982, 218405)]