159464860

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1\times {\mathrm{887}}^1$

素因数の和:1086

約数の個数: 48

約数和(自身を含む): 342377280

約数和(自身を除く): 182912420

約数列:

[1, 2, 4, 5, 10, 20, 89, 101, 178, 202, 356, 404, 445, 505, 887, 890, 1010, 1774, 1780, 2020, 3548, 4435, 8870, 8989, 17740, 17978, 35956, 44945, 78943, 89587, 89890, 157886, 179174, 179780, 315772, 358348, 394715, 447935, 789430, 895870, 1578860, 1791740, 7973243, 15946486, 31892972, 39866215, 79732430, 159464860]

約数ペア:

[(1, 159464860), (2, 79732430), (4, 39866215), (5, 31892972), (10, 15946486), (20, 7973243), (89, 1791740), (101, 1578860), (178, 895870), (202, 789430), (356, 447935), (404, 394715), (445, 358348), (505, 315772), (887, 179780), (890, 179174), (1010, 157886), (1774, 89890), (1780, 89587), (2020, 78943), (3548, 44945), (4435, 35956), (8870, 17978), (8989, 17740)]