90102100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{811}}^1$

素因数の和:937

約数の個数: 72

約数和(自身を含む): 215673696

約数和(自身を除く): 125571596

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 101, 110, 202, 220, 275, 404, 505, 550, 811, 1010, 1100, 1111, 1622, 2020, 2222, 2525, 3244, 4055, 4444, 5050, 5555, 8110, 8921, 10100, 11110, 16220, 17842, 20275, 22220, 27775, 35684, 40550, 44605, 55550, 81100, 81911, 89210, 111100, 163822, 178420, 223025, 327644, 409555, 446050, 819110, 892100, 901021, 1638220, 1802042, 2047775, 3604084, 4095550, 4505105, 8191100, 9010210, 18020420, 22525525, 45051050, 90102100]

約数ペア:

[(1, 90102100), (2, 45051050), (4, 22525525), (5, 18020420), (10, 9010210), (11, 8191100), (20, 4505105), (22, 4095550), (25, 3604084), (44, 2047775), (50, 1802042), (55, 1638220), (100, 901021), (101, 892100), (110, 819110), (202, 446050), (220, 409555), (275, 327644), (404, 223025), (505, 178420), (550, 163822), (811, 111100), (1010, 89210), (1100, 81911), (1111, 81100), (1622, 55550), (2020, 44605), (2222, 40550), (2525, 35684), (3244, 27775), (4055, 22220), (4444, 20275), (5050, 17842), (5555, 16220), (8110, 11110), (8921, 10100)]