20408859420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{317}}^1\times {\mathrm{8191}}^1$

素因数の和:8651

約数の個数: 96

約数和(自身を含む): 57769721856

約数和(自身を除く): 37360862436

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 131, 262, 317, 393, 524, 634, 655, 786, 951, 1268, 1310, 1572, 1585, 1902, 1965, 2620, 3170, 3804, 3930, 4755, 6340, 7860, 8191, 9510, 16382, 19020, 24573, 32764, 40955, 41527, 49146, 81910, 83054, 98292, 122865, 124581, 163820, 166108, 207635, 245730, 249162, 415270, 491460, 498324, 622905, 830540, 1073021, 1245810, 2146042, 2491620, 2596547, 3219063, 4292084, 5193094, 5365105, 6438126, 7789641, 10386188, 10730210, 12876252, 12982735, 15579282, 16095315, 21460420, 25965470, 31158564, 32190630, 38948205, 51930940, 64381260, 77896410, 155792820, 340147657, 680295314, 1020442971, 1360590628, 1700738285, 2040885942, 3401476570, 4081771884, 5102214855, 6802953140, 10204429710, 20408859420]

約数ペア:

[(1, 20408859420), (2, 10204429710), (3, 6802953140), (4, 5102214855), (5, 4081771884), (6, 3401476570), (10, 2040885942), (12, 1700738285), (15, 1360590628), (20, 1020442971), (30, 680295314), (60, 340147657), (131, 155792820), (262, 77896410), (317, 64381260), (393, 51930940), (524, 38948205), (634, 32190630), (655, 31158564), (786, 25965470), (951, 21460420), (1268, 16095315), (1310, 15579282), (1572, 12982735), (1585, 12876252), (1902, 10730210), (1965, 10386188), (2620, 7789641), (3170, 6438126), (3804, 5365105), (3930, 5193094), (4755, 4292084), (6340, 3219063), (7860, 2596547), (8191, 2491620), (9510, 2146042), (16382, 1245810), (19020, 1073021), (24573, 830540), (32764, 622905), (40955, 498324), (41527, 491460), (49146, 415270), (81910, 249162), (83054, 245730), (98292, 207635), (122865, 166108), (124581, 163820)]