217045120

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19949}}^1$

素因数の和:19985

約数の個数: 64

約数和(自身を含む): 549423000

約数和(自身を除く): 332377880

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 272, 320, 340, 544, 640, 680, 1088, 1360, 2176, 2720, 5440, 10880, 19949, 39898, 79796, 99745, 159592, 199490, 319184, 339133, 398980, 638368, 678266, 797960, 1276736, 1356532, 1595920, 1695665, 2553472, 2713064, 3191840, 3391330, 5426128, 6383680, 6782660, 10852256, 12767360, 13565320, 21704512, 27130640, 43409024, 54261280, 108522560, 217045120]

約数ペア:

[(1, 217045120), (2, 108522560), (4, 54261280), (5, 43409024), (8, 27130640), (10, 21704512), (16, 13565320), (17, 12767360), (20, 10852256), (32, 6782660), (34, 6383680), (40, 5426128), (64, 3391330), (68, 3191840), (80, 2713064), (85, 2553472), (128, 1695665), (136, 1595920), (160, 1356532), (170, 1276736), (272, 797960), (320, 678266), (340, 638368), (544, 398980), (640, 339133), (680, 319184), (1088, 199490), (1360, 159592), (2176, 99745), (2720, 79796), (5440, 39898), (10880, 19949)]