20282570

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1$

素因数の和:156

約数の個数: 96

約数和(自身を含む): 47869056

約数和(自身を除く): 27586486

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 49, 53, 55, 70, 71, 77, 98, 106, 110, 142, 154, 245, 265, 355, 371, 385, 490, 497, 530, 539, 583, 710, 742, 770, 781, 994, 1078, 1166, 1562, 1855, 2485, 2597, 2695, 2915, 3479, 3710, 3763, 3905, 4081, 4970, 5194, 5390, 5467, 5830, 6958, 7526, 7810, 8162, 10934, 12985, 17395, 18815, 20405, 25970, 26341, 27335, 28567, 34790, 37630, 38269, 40810, 41393, 52682, 54670, 57134, 76538, 82786, 131705, 142835, 184387, 191345, 206965, 263410, 285670, 289751, 368774, 382690, 413930, 579502, 921935, 1448755, 1843870, 2028257, 2897510, 4056514, 10141285, 20282570]

約数ペア:

[(1, 20282570), (2, 10141285), (5, 4056514), (7, 2897510), (10, 2028257), (11, 1843870), (14, 1448755), (22, 921935), (35, 579502), (49, 413930), (53, 382690), (55, 368774), (70, 289751), (71, 285670), (77, 263410), (98, 206965), (106, 191345), (110, 184387), (142, 142835), (154, 131705), (245, 82786), (265, 76538), (355, 57134), (371, 54670), (385, 52682), (490, 41393), (497, 40810), (530, 38269), (539, 37630), (583, 34790), (710, 28567), (742, 27335), (770, 26341), (781, 25970), (994, 20405), (1078, 18815), (1166, 17395), (1562, 12985), (1855, 10934), (2485, 8162), (2597, 7810), (2695, 7526), (2915, 6958), (3479, 5830), (3710, 5467), (3763, 5390), (3905, 5194), (4081, 4970)]