17967980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1229}}^1$

素因数の和:1298

約数の個数: 48

約数和(自身を含む): 40914720

約数和(自身を除く): 22946740

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 43, 68, 85, 86, 170, 172, 215, 340, 430, 731, 860, 1229, 1462, 2458, 2924, 3655, 4916, 6145, 7310, 12290, 14620, 20893, 24580, 41786, 52847, 83572, 104465, 105694, 208930, 211388, 264235, 417860, 528470, 898399, 1056940, 1796798, 3593596, 4491995, 8983990, 17967980]

約数ペア:

[(1, 17967980), (2, 8983990), (4, 4491995), (5, 3593596), (10, 1796798), (17, 1056940), (20, 898399), (34, 528470), (43, 417860), (68, 264235), (85, 211388), (86, 208930), (170, 105694), (172, 104465), (215, 83572), (340, 52847), (430, 41786), (731, 24580), (860, 20893), (1229, 14620), (1462, 12290), (2458, 7310), (2924, 6145), (3655, 4916)]