28125760

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6761}}^1$

素因数の和:6791

約数の個数: 56

約数和(自身を含む): 72137016

約数和(自身を除く): 44011256

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 6761, 13522, 27044, 33805, 54088, 67610, 87893, 108176, 135220, 175786, 216352, 270440, 351572, 432704, 439465, 540880, 703144, 878930, 1081760, 1406288, 1757860, 2163520, 2812576, 3515720, 5625152, 7031440, 14062880, 28125760]

約数ペア:

[(1, 28125760), (2, 14062880), (4, 7031440), (5, 5625152), (8, 3515720), (10, 2812576), (13, 2163520), (16, 1757860), (20, 1406288), (26, 1081760), (32, 878930), (40, 703144), (52, 540880), (64, 439465), (65, 432704), (80, 351572), (104, 270440), (130, 216352), (160, 175786), (208, 135220), (260, 108176), (320, 87893), (416, 67610), (520, 54088), (832, 33805), (1040, 27044), (2080, 13522), (4160, 6761)]