20775700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{101}}^1$

素因数の和:154

約数の個数: 108

約数和(自身を含む): 52988796

約数和(自身を除く): 32213096

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 25, 34, 44, 50, 55, 68, 85, 100, 101, 110, 121, 170, 187, 202, 220, 242, 275, 340, 374, 404, 425, 484, 505, 550, 605, 748, 850, 935, 1010, 1100, 1111, 1210, 1700, 1717, 1870, 2020, 2057, 2222, 2420, 2525, 3025, 3434, 3740, 4114, 4444, 4675, 5050, 5555, 6050, 6868, 8228, 8585, 9350, 10100, 10285, 11110, 12100, 12221, 17170, 18700, 18887, 20570, 22220, 24442, 27775, 34340, 37774, 41140, 42925, 48884, 51425, 55550, 61105, 75548, 85850, 94435, 102850, 111100, 122210, 171700, 188870, 205700, 207757, 244420, 305525, 377740, 415514, 472175, 611050, 831028, 944350, 1038785, 1222100, 1888700, 2077570, 4155140, 5193925, 10387850, 20775700]

約数ペア:

[(1, 20775700), (2, 10387850), (4, 5193925), (5, 4155140), (10, 2077570), (11, 1888700), (17, 1222100), (20, 1038785), (22, 944350), (25, 831028), (34, 611050), (44, 472175), (50, 415514), (55, 377740), (68, 305525), (85, 244420), (100, 207757), (101, 205700), (110, 188870), (121, 171700), (170, 122210), (187, 111100), (202, 102850), (220, 94435), (242, 85850), (275, 75548), (340, 61105), (374, 55550), (404, 51425), (425, 48884), (484, 42925), (505, 41140), (550, 37774), (605, 34340), (748, 27775), (850, 24442), (935, 22220), (1010, 20570), (1100, 18887), (1111, 18700), (1210, 17170), (1700, 12221), (1717, 12100), (1870, 11110), (2020, 10285), (2057, 10100), (2222, 9350), (2420, 8585), (2525, 8228), (3025, 6868), (3434, 6050), (3740, 5555), (4114, 5050), (4444, 4675)]