20643372

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{379}}^1$

素因数の和:495

約数の個数: 72

約数和(自身を含む): 56019600

約数和(自身を除く): 35376228

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 68, 89, 102, 153, 178, 204, 267, 306, 356, 379, 534, 612, 758, 801, 1068, 1137, 1513, 1516, 1602, 2274, 3026, 3204, 3411, 4539, 4548, 6052, 6443, 6822, 9078, 12886, 13617, 13644, 18156, 19329, 25772, 27234, 33731, 38658, 54468, 57987, 67462, 77316, 101193, 115974, 134924, 202386, 231948, 303579, 404772, 573427, 607158, 1146854, 1214316, 1720281, 2293708, 3440562, 5160843, 6881124, 10321686, 20643372]

約数ペア:

[(1, 20643372), (2, 10321686), (3, 6881124), (4, 5160843), (6, 3440562), (9, 2293708), (12, 1720281), (17, 1214316), (18, 1146854), (34, 607158), (36, 573427), (51, 404772), (68, 303579), (89, 231948), (102, 202386), (153, 134924), (178, 115974), (204, 101193), (267, 77316), (306, 67462), (356, 57987), (379, 54468), (534, 38658), (612, 33731), (758, 27234), (801, 25772), (1068, 19329), (1137, 18156), (1513, 13644), (1516, 13617), (1602, 12886), (2274, 9078), (3026, 6822), (3204, 6443), (3411, 6052), (4539, 4548)]