388687760

素因数分解:

$2^4\times 5^1\times {\mathrm{179}}^1\times {\mathrm{27143}}^1$

素因数の和:27335

約数の個数: 40

約数和(自身を含む): 908781120

約数和(自身を除く): 520093360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 179, 358, 716, 895, 1432, 1790, 2864, 3580, 7160, 14320, 27143, 54286, 108572, 135715, 217144, 271430, 434288, 542860, 1085720, 2171440, 4858597, 9717194, 19434388, 24292985, 38868776, 48585970, 77737552, 97171940, 194343880, 388687760]

約数ペア:

[(1, 388687760), (2, 194343880), (4, 97171940), (5, 77737552), (8, 48585970), (10, 38868776), (16, 24292985), (20, 19434388), (40, 9717194), (80, 4858597), (179, 2171440), (358, 1085720), (716, 542860), (895, 434288), (1432, 271430), (1790, 217144), (2864, 135715), (3580, 108572), (7160, 54286), (14320, 27143)]