15538480

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{4517}}^1$

素因数の和:4573

約数の個数: 40

約数和(自身を含む): 36975312

約数和(自身を除く): 21436832

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 4517, 9034, 18068, 22585, 36136, 45170, 72272, 90340, 180680, 194231, 361360, 388462, 776924, 971155, 1553848, 1942310, 3107696, 3884620, 7769240, 15538480]

約数ペア:

[(1, 15538480), (2, 7769240), (4, 3884620), (5, 3107696), (8, 1942310), (10, 1553848), (16, 971155), (20, 776924), (40, 388462), (43, 361360), (80, 194231), (86, 180680), (172, 90340), (215, 72272), (344, 45170), (430, 36136), (688, 22585), (860, 18068), (1720, 9034), (3440, 4517)]