18909870

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{1699}}^1$

素因数の和:1769

約数の個数: 64

約数和(自身を含む): 52876800

約数和(自身を除く): 33966930

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 53, 70, 105, 106, 159, 210, 265, 318, 371, 530, 742, 795, 1113, 1590, 1699, 1855, 2226, 3398, 3710, 5097, 5565, 8495, 10194, 11130, 11893, 16990, 23786, 25485, 35679, 50970, 59465, 71358, 90047, 118930, 178395, 180094, 270141, 356790, 450235, 540282, 630329, 900470, 1260658, 1350705, 1890987, 2701410, 3151645, 3781974, 6303290, 9454935, 18909870]

約数ペア:

[(1, 18909870), (2, 9454935), (3, 6303290), (5, 3781974), (6, 3151645), (7, 2701410), (10, 1890987), (14, 1350705), (15, 1260658), (21, 900470), (30, 630329), (35, 540282), (42, 450235), (53, 356790), (70, 270141), (105, 180094), (106, 178395), (159, 118930), (210, 90047), (265, 71358), (318, 59465), (371, 50970), (530, 35679), (742, 25485), (795, 23786), (1113, 16990), (1590, 11893), (1699, 11130), (1855, 10194), (2226, 8495), (3398, 5565), (3710, 5097)]