28575560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{307}}^1$

素因数の和:510

約数の個数: 64

約数和(自身を含む): 69854400

約数和(自身を除く): 41278840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 179, 260, 307, 358, 520, 614, 716, 895, 1228, 1432, 1535, 1790, 2327, 2456, 3070, 3580, 3991, 4654, 6140, 7160, 7982, 9308, 11635, 12280, 15964, 18616, 19955, 23270, 31928, 39910, 46540, 54953, 79820, 93080, 109906, 159640, 219812, 274765, 439624, 549530, 714389, 1099060, 1428778, 2198120, 2857556, 3571945, 5715112, 7143890, 14287780, 28575560]

約数ペア:

[(1, 28575560), (2, 14287780), (4, 7143890), (5, 5715112), (8, 3571945), (10, 2857556), (13, 2198120), (20, 1428778), (26, 1099060), (40, 714389), (52, 549530), (65, 439624), (104, 274765), (130, 219812), (179, 159640), (260, 109906), (307, 93080), (358, 79820), (520, 54953), (614, 46540), (716, 39910), (895, 31928), (1228, 23270), (1432, 19955), (1535, 18616), (1790, 15964), (2327, 12280), (2456, 11635), (3070, 9308), (3580, 7982), (3991, 7160), (4654, 6140)]