18402260

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{613}}^1$

素因数の和:720

約数の個数: 48

約数和(自身を含む): 41260800

約数和(自身を除く): 22858540

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 79, 95, 158, 190, 316, 380, 395, 613, 790, 1226, 1501, 1580, 2452, 3002, 3065, 6004, 6130, 7505, 11647, 12260, 15010, 23294, 30020, 46588, 48427, 58235, 96854, 116470, 193708, 232940, 242135, 484270, 920113, 968540, 1840226, 3680452, 4600565, 9201130, 18402260]

約数ペア:

[(1, 18402260), (2, 9201130), (4, 4600565), (5, 3680452), (10, 1840226), (19, 968540), (20, 920113), (38, 484270), (76, 242135), (79, 232940), (95, 193708), (158, 116470), (190, 96854), (316, 58235), (380, 48427), (395, 46588), (613, 30020), (790, 23294), (1226, 15010), (1501, 12260), (1580, 11647), (2452, 7505), (3002, 6130), (3065, 6004)]