209519384

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{383}}^1$

素因数の和:528

約数の個数: 64

約数和(自身を含む): 428544000

約数和(自身を除く): 219024616

約数列:

[1, 2, 4, 8, 19, 38, 59, 61, 76, 118, 122, 152, 236, 244, 383, 472, 488, 766, 1121, 1159, 1532, 2242, 2318, 3064, 3599, 4484, 4636, 7198, 7277, 8968, 9272, 14396, 14554, 22597, 23363, 28792, 29108, 45194, 46726, 58216, 68381, 90388, 93452, 136762, 180776, 186904, 273524, 429343, 443897, 547048, 858686, 887794, 1378417, 1717372, 1775588, 2756834, 3434744, 3551176, 5513668, 11027336, 26189923, 52379846, 104759692, 209519384]

約数ペア:

[(1, 209519384), (2, 104759692), (4, 52379846), (8, 26189923), (19, 11027336), (38, 5513668), (59, 3551176), (61, 3434744), (76, 2756834), (118, 1775588), (122, 1717372), (152, 1378417), (236, 887794), (244, 858686), (383, 547048), (472, 443897), (488, 429343), (766, 273524), (1121, 186904), (1159, 180776), (1532, 136762), (2242, 93452), (2318, 90388), (3064, 68381), (3599, 58216), (4484, 46726), (4636, 45194), (7198, 29108), (7277, 28792), (8968, 23363), (9272, 22597), (14396, 14554)]