21167404100

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{293}}^1\times {\mathrm{809}}^1$

素因数の和:1182

約数の個数: 144

約数和(自身を含む): 49609324800

約数和(自身を除く): 28441920700

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 47, 50, 76, 94, 95, 100, 188, 190, 235, 293, 380, 470, 475, 586, 809, 893, 940, 950, 1172, 1175, 1465, 1618, 1786, 1900, 2350, 2930, 3236, 3572, 4045, 4465, 4700, 5567, 5860, 7325, 8090, 8930, 11134, 13771, 14650, 15371, 16180, 17860, 20225, 22268, 22325, 27542, 27835, 29300, 30742, 38023, 40450, 44650, 55084, 55670, 61484, 68855, 76046, 76855, 80900, 89300, 111340, 137710, 139175, 152092, 153710, 190115, 237037, 261649, 275420, 278350, 307420, 344275, 380230, 384275, 474074, 523298, 556700, 688550, 722437, 760460, 768550, 948148, 950575, 1046596, 1185185, 1308245, 1377100, 1444874, 1537100, 1901150, 2370370, 2616490, 2889748, 3612185, 3802300, 4503703, 4740740, 5232980, 5925925, 6541225, 7224370, 9007406, 11140739, 11851850, 13082450, 14448740, 18014812, 18060925, 22281478, 22518515, 23703700, 26164900, 36121850, 44562956, 45037030, 55703695, 72243700, 90074060, 111407390, 112592575, 211674041, 222814780, 225185150, 278518475, 423348082, 450370300, 557036950, 846696164, 1058370205, 1114073900, 2116740410, 4233480820, 5291851025, 10583702050, 21167404100]

約数ペア:

[(1, 21167404100), (2, 10583702050), (4, 5291851025), (5, 4233480820), (10, 2116740410), (19, 1114073900), (20, 1058370205), (25, 846696164), (38, 557036950), (47, 450370300), (50, 423348082), (76, 278518475), (94, 225185150), (95, 222814780), (100, 211674041), (188, 112592575), (190, 111407390), (235, 90074060), (293, 72243700), (380, 55703695), (470, 45037030), (475, 44562956), (586, 36121850), (809, 26164900), (893, 23703700), (940, 22518515), (950, 22281478), (1172, 18060925), (1175, 18014812), (1465, 14448740), (1618, 13082450), (1786, 11851850), (1900, 11140739), (2350, 9007406), (2930, 7224370), (3236, 6541225), (3572, 5925925), (4045, 5232980), (4465, 4740740), (4700, 4503703), (5567, 3802300), (5860, 3612185), (7325, 2889748), (8090, 2616490), (8930, 2370370), (11134, 1901150), (13771, 1537100), (14650, 1444874), (15371, 1377100), (16180, 1308245), (17860, 1185185), (20225, 1046596), (22268, 950575), (22325, 948148), (27542, 768550), (27835, 760460), (29300, 722437), (30742, 688550), (38023, 556700), (40450, 523298), (44650, 474074), (55084, 384275), (55670, 380230), (61484, 344275), (68855, 307420), (76046, 278350), (76855, 275420), (80900, 261649), (89300, 237037), (111340, 190115), (137710, 153710), (139175, 152092)]