18016250

素因数分解:

$2^1\times 5^4\times 7^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1$

素因数の和:129

約数の個数: 80

約数和(自身を含む): 40487040

約数和(自身を除く): 22470790

約数列:

[1, 2, 5, 7, 10, 14, 25, 29, 35, 50, 58, 70, 71, 125, 142, 145, 175, 203, 250, 290, 350, 355, 406, 497, 625, 710, 725, 875, 994, 1015, 1250, 1450, 1750, 1775, 2030, 2059, 2485, 3550, 3625, 4118, 4375, 4970, 5075, 7250, 8750, 8875, 10150, 10295, 12425, 14413, 17750, 18125, 20590, 24850, 25375, 28826, 36250, 44375, 50750, 51475, 62125, 72065, 88750, 102950, 124250, 126875, 144130, 253750, 257375, 310625, 360325, 514750, 621250, 720650, 1286875, 1801625, 2573750, 3603250, 9008125, 18016250]

約数ペア:

[(1, 18016250), (2, 9008125), (5, 3603250), (7, 2573750), (10, 1801625), (14, 1286875), (25, 720650), (29, 621250), (35, 514750), (50, 360325), (58, 310625), (70, 257375), (71, 253750), (125, 144130), (142, 126875), (145, 124250), (175, 102950), (203, 88750), (250, 72065), (290, 62125), (350, 51475), (355, 50750), (406, 44375), (497, 36250), (625, 28826), (710, 25375), (725, 24850), (875, 20590), (994, 18125), (1015, 17750), (1250, 14413), (1450, 12425), (1750, 10295), (1775, 10150), (2030, 8875), (2059, 8750), (2485, 7250), (3550, 5075), (3625, 4970), (4118, 4375)]