19918128

素因数分解:

$2^4\times 3^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{349}}^1$

素因数の和:430

約数の個数: 80

約数和(自身を含む): 54684000

約数和(自身を除く): 34765872

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 29, 41, 48, 58, 82, 87, 116, 123, 164, 174, 232, 246, 328, 348, 349, 464, 492, 656, 696, 698, 984, 1047, 1189, 1392, 1396, 1968, 2094, 2378, 2792, 3567, 4188, 4756, 5584, 7134, 8376, 9512, 10121, 14268, 14309, 16752, 19024, 20242, 28536, 28618, 30363, 40484, 42927, 57072, 57236, 60726, 80968, 85854, 114472, 121452, 161936, 171708, 228944, 242904, 343416, 414961, 485808, 686832, 829922, 1244883, 1659844, 2489766, 3319688, 4979532, 6639376, 9959064, 19918128]

約数ペア:

[(1, 19918128), (2, 9959064), (3, 6639376), (4, 4979532), (6, 3319688), (8, 2489766), (12, 1659844), (16, 1244883), (24, 829922), (29, 686832), (41, 485808), (48, 414961), (58, 343416), (82, 242904), (87, 228944), (116, 171708), (123, 161936), (164, 121452), (174, 114472), (232, 85854), (246, 80968), (328, 60726), (348, 57236), (349, 57072), (464, 42927), (492, 40484), (656, 30363), (696, 28618), (698, 28536), (984, 20242), (1047, 19024), (1189, 16752), (1392, 14309), (1396, 14268), (1968, 10121), (2094, 9512), (2378, 8376), (2792, 7134), (3567, 5584), (4188, 4756)]