1340960

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^2\times {\mathrm{29}}^1$

素因数の和:78

約数の個数: 72

約数和(自身を含む): 3481380

約数和(自身を除く): 2140420

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 29, 32, 34, 40, 58, 68, 80, 85, 116, 136, 145, 160, 170, 232, 272, 289, 290, 340, 464, 493, 544, 578, 580, 680, 928, 986, 1156, 1160, 1360, 1445, 1972, 2312, 2320, 2465, 2720, 2890, 3944, 4624, 4640, 4930, 5780, 7888, 8381, 9248, 9860, 11560, 15776, 16762, 19720, 23120, 33524, 39440, 41905, 46240, 67048, 78880, 83810, 134096, 167620, 268192, 335240, 670480, 1340960]

約数ペア:

[(1, 1340960), (2, 670480), (4, 335240), (5, 268192), (8, 167620), (10, 134096), (16, 83810), (17, 78880), (20, 67048), (29, 46240), (32, 41905), (34, 39440), (40, 33524), (58, 23120), (68, 19720), (80, 16762), (85, 15776), (116, 11560), (136, 9860), (145, 9248), (160, 8381), (170, 7888), (232, 5780), (272, 4930), (289, 4640), (290, 4624), (340, 3944), (464, 2890), (493, 2720), (544, 2465), (578, 2320), (580, 2312), (680, 1972), (928, 1445), (986, 1360), (1156, 1160)]