190022980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{2731}}^1$

素因数の和:2825

約数の個数: 72

約数和(自身を含む): 470909376

約数和(自身を除く): 280886396

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 71, 98, 140, 142, 196, 245, 284, 355, 490, 497, 710, 980, 994, 1420, 1988, 2485, 2731, 3479, 4970, 5462, 6958, 9940, 10924, 13655, 13916, 17395, 19117, 27310, 34790, 38234, 54620, 69580, 76468, 95585, 133819, 191170, 193901, 267638, 382340, 387802, 535276, 669095, 775604, 969505, 1338190, 1357307, 1939010, 2676380, 2714614, 3878020, 5429228, 6786535, 9501149, 13573070, 19002298, 27146140, 38004596, 47505745, 95011490, 190022980]

約数ペア:

[(1, 190022980), (2, 95011490), (4, 47505745), (5, 38004596), (7, 27146140), (10, 19002298), (14, 13573070), (20, 9501149), (28, 6786535), (35, 5429228), (49, 3878020), (70, 2714614), (71, 2676380), (98, 1939010), (140, 1357307), (142, 1338190), (196, 969505), (245, 775604), (284, 669095), (355, 535276), (490, 387802), (497, 382340), (710, 267638), (980, 193901), (994, 191170), (1420, 133819), (1988, 95585), (2485, 76468), (2731, 69580), (3479, 54620), (4970, 38234), (5462, 34790), (6958, 27310), (9940, 19117), (10924, 17395), (13655, 13916)]