28783020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{68531}}^1$

素因数の和:68550

約数の個数: 48

約数和(自身を含む): 92107008

約数和(自身を除く): 63323988

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 68531, 137062, 205593, 274124, 342655, 411186, 479717, 685310, 822372, 959434, 1027965, 1370620, 1439151, 1918868, 2055930, 2398585, 2878302, 4111860, 4797170, 5756604, 7195755, 9594340, 14391510, 28783020]

約数ペア:

[(1, 28783020), (2, 14391510), (3, 9594340), (4, 7195755), (5, 5756604), (6, 4797170), (7, 4111860), (10, 2878302), (12, 2398585), (14, 2055930), (15, 1918868), (20, 1439151), (21, 1370620), (28, 1027965), (30, 959434), (35, 822372), (42, 685310), (60, 479717), (70, 411186), (84, 342655), (105, 274124), (140, 205593), (210, 137062), (420, 68531)]