18601570

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{443}}^1$

素因数の和:499

約数の個数: 64

約数和(自身を含む): 40279680

約数和(自身を除く): 21678110

約数列:

[1, 2, 5, 10, 13, 17, 19, 26, 34, 38, 65, 85, 95, 130, 170, 190, 221, 247, 323, 442, 443, 494, 646, 886, 1105, 1235, 1615, 2210, 2215, 2470, 3230, 4199, 4430, 5759, 7531, 8398, 8417, 11518, 15062, 16834, 20995, 28795, 37655, 41990, 42085, 57590, 75310, 84170, 97903, 109421, 143089, 195806, 218842, 286178, 489515, 547105, 715445, 979030, 1094210, 1430890, 1860157, 3720314, 9300785, 18601570]

約数ペア:

[(1, 18601570), (2, 9300785), (5, 3720314), (10, 1860157), (13, 1430890), (17, 1094210), (19, 979030), (26, 715445), (34, 547105), (38, 489515), (65, 286178), (85, 218842), (95, 195806), (130, 143089), (170, 109421), (190, 97903), (221, 84170), (247, 75310), (323, 57590), (442, 42085), (443, 41990), (494, 37655), (646, 28795), (886, 20995), (1105, 16834), (1235, 15062), (1615, 11518), (2210, 8417), (2215, 8398), (2470, 7531), (3230, 5759), (4199, 4430)]