1390400

素因数分解:

$2^6\times 5^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1$

素因数の和:112

約数の個数: 84

約数和(自身を含む): 3779520

約数和(自身を除く): 2389120

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 32, 40, 44, 50, 55, 64, 79, 80, 88, 100, 110, 158, 160, 176, 200, 220, 275, 316, 320, 352, 395, 400, 440, 550, 632, 704, 790, 800, 869, 880, 1100, 1264, 1580, 1600, 1738, 1760, 1975, 2200, 2528, 3160, 3476, 3520, 3950, 4345, 4400, 5056, 6320, 6952, 7900, 8690, 8800, 12640, 13904, 15800, 17380, 17600, 21725, 25280, 27808, 31600, 34760, 43450, 55616, 63200, 69520, 86900, 126400, 139040, 173800, 278080, 347600, 695200, 1390400]

約数ペア:

[(1, 1390400), (2, 695200), (4, 347600), (5, 278080), (8, 173800), (10, 139040), (11, 126400), (16, 86900), (20, 69520), (22, 63200), (25, 55616), (32, 43450), (40, 34760), (44, 31600), (50, 27808), (55, 25280), (64, 21725), (79, 17600), (80, 17380), (88, 15800), (100, 13904), (110, 12640), (158, 8800), (160, 8690), (176, 7900), (200, 6952), (220, 6320), (275, 5056), (316, 4400), (320, 4345), (352, 3950), (395, 3520), (400, 3476), (440, 3160), (550, 2528), (632, 2200), (704, 1975), (790, 1760), (800, 1738), (869, 1600), (880, 1580), (1100, 1264)]