20764140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{20357}}^1$

素因数の和:20386

約数の個数: 48

約数和(自身を含む): 61562592

約数和(自身を除く): 40798452

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 20357, 40714, 61071, 81428, 101785, 122142, 203570, 244284, 305355, 346069, 407140, 610710, 692138, 1038207, 1221420, 1384276, 1730345, 2076414, 3460690, 4152828, 5191035, 6921380, 10382070, 20764140]

約数ペア:

[(1, 20764140), (2, 10382070), (3, 6921380), (4, 5191035), (5, 4152828), (6, 3460690), (10, 2076414), (12, 1730345), (15, 1384276), (17, 1221420), (20, 1038207), (30, 692138), (34, 610710), (51, 407140), (60, 346069), (68, 305355), (85, 244284), (102, 203570), (170, 122142), (204, 101785), (255, 81428), (340, 61071), (510, 40714), (1020, 20357)]