17920240

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17231}}^1$

素因数の和:17257

約数の個数: 40

約数和(自身を含む): 44872128

約数和(自身を除く): 26951888

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 17231, 34462, 68924, 86155, 137848, 172310, 224003, 275696, 344620, 448006, 689240, 896012, 1120015, 1378480, 1792024, 2240030, 3584048, 4480060, 8960120, 17920240]

約数ペア:

[(1, 17920240), (2, 8960120), (4, 4480060), (5, 3584048), (8, 2240030), (10, 1792024), (13, 1378480), (16, 1120015), (20, 896012), (26, 689240), (40, 448006), (52, 344620), (65, 275696), (80, 224003), (104, 172310), (130, 137848), (208, 86155), (260, 68924), (520, 34462), (1040, 17231)]