20512506553

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{4409}}^1$

素因数の和:4558

約数の個数: 64

約数和(自身を含む): 27799511040

約数和(自身を除く): 7287004487

約数列:

[1, 7, 11, 23, 37, 71, 77, 161, 253, 259, 407, 497, 781, 851, 1633, 1771, 2627, 2849, 4409, 5467, 5957, 9361, 11431, 17963, 18389, 28897, 30863, 48499, 60421, 65527, 101407, 125741, 163133, 202279, 313039, 339493, 422947, 664631, 709849, 1115477, 1141931, 1794463, 2191273, 3443429, 3752059, 4652417, 7199897, 7808339, 11582443, 12561241, 24104003, 26264413, 41272649, 50399279, 79198867, 81077101, 127406873, 266396189, 288908543, 554392069, 891848111, 1864773323, 2930358079, 20512506553]

約数ペア:

[(1, 20512506553), (7, 2930358079), (11, 1864773323), (23, 891848111), (37, 554392069), (71, 288908543), (77, 266396189), (161, 127406873), (253, 81077101), (259, 79198867), (407, 50399279), (497, 41272649), (781, 26264413), (851, 24104003), (1633, 12561241), (1771, 11582443), (2627, 7808339), (2849, 7199897), (4409, 4652417), (5467, 3752059), (5957, 3443429), (9361, 2191273), (11431, 1794463), (17963, 1141931), (18389, 1115477), (28897, 709849), (30863, 664631), (48499, 422947), (60421, 339493), (65527, 313039), (101407, 202279), (125741, 163133)]