19509440

素因数分解:

$2^6\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1487}}^1$

素因数の和:1545

約数の個数: 56

約数和(自身を含む): 47621952

約数和(自身を除く): 28112512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 160, 164, 205, 320, 328, 410, 656, 820, 1312, 1487, 1640, 2624, 2974, 3280, 5948, 6560, 7435, 11896, 13120, 14870, 23792, 29740, 47584, 59480, 60967, 95168, 118960, 121934, 237920, 243868, 304835, 475840, 487736, 609670, 975472, 1219340, 1950944, 2438680, 3901888, 4877360, 9754720, 19509440]

約数ペア:

[(1, 19509440), (2, 9754720), (4, 4877360), (5, 3901888), (8, 2438680), (10, 1950944), (16, 1219340), (20, 975472), (32, 609670), (40, 487736), (41, 475840), (64, 304835), (80, 243868), (82, 237920), (160, 121934), (164, 118960), (205, 95168), (320, 60967), (328, 59480), (410, 47584), (656, 29740), (820, 23792), (1312, 14870), (1487, 13120), (1640, 11896), (2624, 7435), (2974, 6560), (3280, 5948)]