326086720

素因数分解:

$2^6\times 5^1\times {\mathrm{79}}^1\times {\mathrm{12899}}^1$

素因数の和:12995

約数の個数: 56

約数和(自身を含む): 786384000

約数和(自身を除く): 460297280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 158, 160, 316, 320, 395, 632, 790, 1264, 1580, 2528, 3160, 5056, 6320, 12640, 12899, 25280, 25798, 51596, 64495, 103192, 128990, 206384, 257980, 412768, 515960, 825536, 1019021, 1031920, 2038042, 2063840, 4076084, 4127680, 5095105, 8152168, 10190210, 16304336, 20380420, 32608672, 40760840, 65217344, 81521680, 163043360, 326086720]

約数ペア:

[(1, 326086720), (2, 163043360), (4, 81521680), (5, 65217344), (8, 40760840), (10, 32608672), (16, 20380420), (20, 16304336), (32, 10190210), (40, 8152168), (64, 5095105), (79, 4127680), (80, 4076084), (158, 2063840), (160, 2038042), (316, 1031920), (320, 1019021), (395, 825536), (632, 515960), (790, 412768), (1264, 257980), (1580, 206384), (2528, 128990), (3160, 103192), (5056, 64495), (6320, 51596), (12640, 25798), (12899, 25280)]