28438505680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{167759}}^1$

素因数の和:167948

約数の個数: 80

約数和(自身を含む): 71642914560

約数和(自身を除く): 43204408880

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 163, 208, 260, 326, 520, 652, 815, 1040, 1304, 1630, 2119, 2608, 3260, 4238, 6520, 8476, 10595, 13040, 16952, 21190, 33904, 42380, 84760, 167759, 169520, 335518, 671036, 838795, 1342072, 1677590, 2180867, 2684144, 3355180, 4361734, 6710360, 8723468, 10904335, 13420720, 17446936, 21808670, 27344717, 34893872, 43617340, 54689434, 87234680, 109378868, 136723585, 174469360, 218757736, 273447170, 355481321, 437515472, 546894340, 710962642, 1093788680, 1421925284, 1777406605, 2187577360, 2843850568, 3554813210, 5687701136, 7109626420, 14219252840, 28438505680]

約数ペア:

[(1, 28438505680), (2, 14219252840), (4, 7109626420), (5, 5687701136), (8, 3554813210), (10, 2843850568), (13, 2187577360), (16, 1777406605), (20, 1421925284), (26, 1093788680), (40, 710962642), (52, 546894340), (65, 437515472), (80, 355481321), (104, 273447170), (130, 218757736), (163, 174469360), (208, 136723585), (260, 109378868), (326, 87234680), (520, 54689434), (652, 43617340), (815, 34893872), (1040, 27344717), (1304, 21808670), (1630, 17446936), (2119, 13420720), (2608, 10904335), (3260, 8723468), (4238, 6710360), (6520, 4361734), (8476, 3355180), (10595, 2684144), (13040, 2180867), (16952, 1677590), (21190, 1342072), (33904, 838795), (42380, 671036), (84760, 335518), (167759, 169520)]