81941200

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^2\times {\mathrm{1693}}^1$

素因数の和:1733

約数の個数: 90

約数和(自身を含む): 216515222

約数和(自身を除く): 134574022

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 40, 44, 50, 55, 80, 88, 100, 110, 121, 176, 200, 220, 242, 275, 400, 440, 484, 550, 605, 880, 968, 1100, 1210, 1693, 1936, 2200, 2420, 3025, 3386, 4400, 4840, 6050, 6772, 8465, 9680, 12100, 13544, 16930, 18623, 24200, 27088, 33860, 37246, 42325, 48400, 67720, 74492, 84650, 93115, 135440, 148984, 169300, 186230, 204853, 297968, 338600, 372460, 409706, 465575, 677200, 744920, 819412, 931150, 1024265, 1489840, 1638824, 1862300, 2048530, 3277648, 3724600, 4097060, 5121325, 7449200, 8194120, 10242650, 16388240, 20485300, 40970600, 81941200]

約数ペア:

[(1, 81941200), (2, 40970600), (4, 20485300), (5, 16388240), (8, 10242650), (10, 8194120), (11, 7449200), (16, 5121325), (20, 4097060), (22, 3724600), (25, 3277648), (40, 2048530), (44, 1862300), (50, 1638824), (55, 1489840), (80, 1024265), (88, 931150), (100, 819412), (110, 744920), (121, 677200), (176, 465575), (200, 409706), (220, 372460), (242, 338600), (275, 297968), (400, 204853), (440, 186230), (484, 169300), (550, 148984), (605, 135440), (880, 93115), (968, 84650), (1100, 74492), (1210, 67720), (1693, 48400), (1936, 42325), (2200, 37246), (2420, 33860), (3025, 27088), (3386, 24200), (4400, 18623), (4840, 16930), (6050, 13544), (6772, 12100), (8465, 9680)]