81395790

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{347}}^1\times {\mathrm{1117}}^1$

素因数の和:1481

約数の個数: 64

約数和(自身を含む): 224100864

約数和(自身を除く): 142705074

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 347, 694, 1041, 1117, 1735, 2082, 2234, 2429, 3351, 3470, 4858, 5205, 5585, 6702, 7287, 7819, 10410, 11170, 12145, 14574, 15638, 16755, 23457, 24290, 33510, 36435, 39095, 46914, 72870, 78190, 117285, 234570, 387599, 775198, 1162797, 1937995, 2325594, 2713193, 3875990, 5426386, 5813985, 8139579, 11627970, 13565965, 16279158, 27131930, 40697895, 81395790]

約数ペア:

[(1, 81395790), (2, 40697895), (3, 27131930), (5, 16279158), (6, 13565965), (7, 11627970), (10, 8139579), (14, 5813985), (15, 5426386), (21, 3875990), (30, 2713193), (35, 2325594), (42, 1937995), (70, 1162797), (105, 775198), (210, 387599), (347, 234570), (694, 117285), (1041, 78190), (1117, 72870), (1735, 46914), (2082, 39095), (2234, 36435), (2429, 33510), (3351, 24290), (3470, 23457), (4858, 16755), (5205, 15638), (5585, 14574), (6702, 12145), (7287, 11170), (7819, 10410)]