28796820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{36919}}^1$

素因数の和:36944

約数の個数: 48

約数和(自身を含む): 86835840

約数和(自身を除く): 58039020

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 36919, 73838, 110757, 147676, 184595, 221514, 369190, 443028, 479947, 553785, 738380, 959894, 1107570, 1439841, 1919788, 2215140, 2399735, 2879682, 4799470, 5759364, 7199205, 9598940, 14398410, 28796820]

約数ペア:

[(1, 28796820), (2, 14398410), (3, 9598940), (4, 7199205), (5, 5759364), (6, 4799470), (10, 2879682), (12, 2399735), (13, 2215140), (15, 1919788), (20, 1439841), (26, 1107570), (30, 959894), (39, 738380), (52, 553785), (60, 479947), (65, 443028), (78, 369190), (130, 221514), (156, 184595), (195, 147676), (260, 110757), (390, 73838), (780, 36919)]