28411760

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1607}}^1$

素因数の和:1650

約数の個数: 80

約数和(自身を含む): 75370176

約数和(自身を除く): 46958416

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 34, 40, 52, 65, 68, 80, 85, 104, 130, 136, 170, 208, 221, 260, 272, 340, 442, 520, 680, 884, 1040, 1105, 1360, 1607, 1768, 2210, 3214, 3536, 4420, 6428, 8035, 8840, 12856, 16070, 17680, 20891, 25712, 27319, 32140, 41782, 54638, 64280, 83564, 104455, 109276, 128560, 136595, 167128, 208910, 218552, 273190, 334256, 355147, 417820, 437104, 546380, 710294, 835640, 1092760, 1420588, 1671280, 1775735, 2185520, 2841176, 3551470, 5682352, 7102940, 14205880, 28411760]

約数ペア:

[(1, 28411760), (2, 14205880), (4, 7102940), (5, 5682352), (8, 3551470), (10, 2841176), (13, 2185520), (16, 1775735), (17, 1671280), (20, 1420588), (26, 1092760), (34, 835640), (40, 710294), (52, 546380), (65, 437104), (68, 417820), (80, 355147), (85, 334256), (104, 273190), (130, 218552), (136, 208910), (170, 167128), (208, 136595), (221, 128560), (260, 109276), (272, 104455), (340, 83564), (442, 64280), (520, 54638), (680, 41782), (884, 32140), (1040, 27319), (1105, 25712), (1360, 20891), (1607, 17680), (1768, 16070), (2210, 12856), (3214, 8840), (3536, 8035), (4420, 6428)]