1800366920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{29437}}^1$

素因数の和:29598

約数の個数: 64

約数和(自身を含む): 4451025600

約数和(自身を除く): 2650658680

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 139, 220, 278, 440, 556, 695, 1112, 1390, 1529, 2780, 3058, 5560, 6116, 7645, 12232, 15290, 29437, 30580, 58874, 61160, 117748, 147185, 235496, 294370, 323807, 588740, 647614, 1177480, 1295228, 1619035, 2590456, 3238070, 4091743, 6476140, 8183486, 12952280, 16366972, 20458715, 32733944, 40917430, 45009173, 81834860, 90018346, 163669720, 180036692, 225045865, 360073384, 450091730, 900183460, 1800366920]

約数ペア:

[(1, 1800366920), (2, 900183460), (4, 450091730), (5, 360073384), (8, 225045865), (10, 180036692), (11, 163669720), (20, 90018346), (22, 81834860), (40, 45009173), (44, 40917430), (55, 32733944), (88, 20458715), (110, 16366972), (139, 12952280), (220, 8183486), (278, 6476140), (440, 4091743), (556, 3238070), (695, 2590456), (1112, 1619035), (1390, 1295228), (1529, 1177480), (2780, 647614), (3058, 588740), (5560, 323807), (6116, 294370), (7645, 235496), (12232, 147185), (15290, 117748), (29437, 61160), (30580, 58874)]