20451690

素因数分解:

$2^1\times 3^4\times 5^1\times 7^1\times {\mathrm{3607}}^1$

素因数の和:3633

約数の個数: 80

約数和(自身を含む): 62865792

約数和(自身を除く): 42414102

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 81, 90, 105, 126, 135, 162, 189, 210, 270, 315, 378, 405, 567, 630, 810, 945, 1134, 1890, 2835, 3607, 5670, 7214, 10821, 18035, 21642, 25249, 32463, 36070, 50498, 54105, 64926, 75747, 97389, 108210, 126245, 151494, 162315, 194778, 227241, 252490, 292167, 324630, 378735, 454482, 486945, 584334, 681723, 757470, 973890, 1136205, 1363446, 1460835, 2045169, 2272410, 2921670, 3408615, 4090338, 6817230, 10225845, 20451690]

約数ペア:

[(1, 20451690), (2, 10225845), (3, 6817230), (5, 4090338), (6, 3408615), (7, 2921670), (9, 2272410), (10, 2045169), (14, 1460835), (15, 1363446), (18, 1136205), (21, 973890), (27, 757470), (30, 681723), (35, 584334), (42, 486945), (45, 454482), (54, 378735), (63, 324630), (70, 292167), (81, 252490), (90, 227241), (105, 194778), (126, 162315), (135, 151494), (162, 126245), (189, 108210), (210, 97389), (270, 75747), (315, 64926), (378, 54105), (405, 50498), (567, 36070), (630, 32463), (810, 25249), (945, 21642), (1134, 18035), (1890, 10821), (2835, 7214), (3607, 5670)]