161654540

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1\times {\mathrm{1013}}^1$

素因数の和:1202

約数の個数: 48

約数和(自身を含む): 347518080

約数和(自身を除く): 185863540

約数列:

[1, 2, 4, 5, 10, 20, 79, 101, 158, 202, 316, 395, 404, 505, 790, 1010, 1013, 1580, 2020, 2026, 4052, 5065, 7979, 10130, 15958, 20260, 31916, 39895, 79790, 80027, 102313, 159580, 160054, 204626, 320108, 400135, 409252, 511565, 800270, 1023130, 1600540, 2046260, 8082727, 16165454, 32330908, 40413635, 80827270, 161654540]

約数ペア:

[(1, 161654540), (2, 80827270), (4, 40413635), (5, 32330908), (10, 16165454), (20, 8082727), (79, 2046260), (101, 1600540), (158, 1023130), (202, 800270), (316, 511565), (395, 409252), (404, 400135), (505, 320108), (790, 204626), (1010, 160054), (1013, 159580), (1580, 102313), (2020, 80027), (2026, 79790), (4052, 39895), (5065, 31916), (7979, 20260), (10130, 15958)]