72670420

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{179}}^1\times {\mathrm{383}}^1$

素因数の和:624

約数の個数: 48

約数和(自身を含む): 156764160

約数和(自身を除く): 84093740

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 179, 212, 265, 358, 383, 530, 716, 766, 895, 1060, 1532, 1790, 1915, 3580, 3830, 7660, 9487, 18974, 20299, 37948, 40598, 47435, 68557, 81196, 94870, 101495, 137114, 189740, 202990, 274228, 342785, 405980, 685570, 1371140, 3633521, 7267042, 14534084, 18167605, 36335210, 72670420]

約数ペア:

[(1, 72670420), (2, 36335210), (4, 18167605), (5, 14534084), (10, 7267042), (20, 3633521), (53, 1371140), (106, 685570), (179, 405980), (212, 342785), (265, 274228), (358, 202990), (383, 189740), (530, 137114), (716, 101495), (766, 94870), (895, 81196), (1060, 68557), (1532, 47435), (1790, 40598), (1915, 37948), (3580, 20299), (3830, 18974), (7660, 9487)]