81903280

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{60223}}^1$

素因数の和:60253

約数の個数: 40

約数和(自身を含む): 201629952

約数和(自身を除く): 119726672

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 60223, 120446, 240892, 301115, 481784, 602230, 963568, 1023791, 1204460, 2047582, 2408920, 4095164, 4817840, 5118955, 8190328, 10237910, 16380656, 20475820, 40951640, 81903280]

約数ペア:

[(1, 81903280), (2, 40951640), (4, 20475820), (5, 16380656), (8, 10237910), (10, 8190328), (16, 5118955), (17, 4817840), (20, 4095164), (34, 2408920), (40, 2047582), (68, 1204460), (80, 1023791), (85, 963568), (136, 602230), (170, 481784), (272, 301115), (340, 240892), (680, 120446), (1360, 60223)]