16900720

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^3\times {\mathrm{43}}^1$

素因数の和:107

約数の個数: 80

約数和(自身を含む): 42720480

約数和(自身を除く): 25819760

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 43, 68, 80, 85, 86, 136, 170, 172, 215, 272, 289, 340, 344, 430, 578, 680, 688, 731, 860, 1156, 1360, 1445, 1462, 1720, 2312, 2890, 2924, 3440, 3655, 4624, 4913, 5780, 5848, 7310, 9826, 11560, 11696, 12427, 14620, 19652, 23120, 24565, 24854, 29240, 39304, 49130, 49708, 58480, 62135, 78608, 98260, 99416, 124270, 196520, 198832, 211259, 248540, 393040, 422518, 497080, 845036, 994160, 1056295, 1690072, 2112590, 3380144, 4225180, 8450360, 16900720]

約数ペア:

[(1, 16900720), (2, 8450360), (4, 4225180), (5, 3380144), (8, 2112590), (10, 1690072), (16, 1056295), (17, 994160), (20, 845036), (34, 497080), (40, 422518), (43, 393040), (68, 248540), (80, 211259), (85, 198832), (86, 196520), (136, 124270), (170, 99416), (172, 98260), (215, 78608), (272, 62135), (289, 58480), (340, 49708), (344, 49130), (430, 39304), (578, 29240), (680, 24854), (688, 24565), (731, 23120), (860, 19652), (1156, 14620), (1360, 12427), (1445, 11696), (1462, 11560), (1720, 9826), (2312, 7310), (2890, 5848), (2924, 5780), (3440, 4913), (3655, 4624)]