90801920

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{6449}}^1$

素因数の和:6481

約数の個数: 72

約数和(自身を含む): 237308400

約数和(自身を除く): 146506480

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 256, 320, 352, 440, 640, 704, 880, 1280, 1408, 1760, 2816, 3520, 6449, 7040, 12898, 14080, 25796, 32245, 51592, 64490, 70939, 103184, 128980, 141878, 206368, 257960, 283756, 354695, 412736, 515920, 567512, 709390, 825472, 1031840, 1135024, 1418780, 1650944, 2063680, 2270048, 2837560, 4127360, 4540096, 5675120, 8254720, 9080192, 11350240, 18160384, 22700480, 45400960, 90801920]

約数ペア:

[(1, 90801920), (2, 45400960), (4, 22700480), (5, 18160384), (8, 11350240), (10, 9080192), (11, 8254720), (16, 5675120), (20, 4540096), (22, 4127360), (32, 2837560), (40, 2270048), (44, 2063680), (55, 1650944), (64, 1418780), (80, 1135024), (88, 1031840), (110, 825472), (128, 709390), (160, 567512), (176, 515920), (220, 412736), (256, 354695), (320, 283756), (352, 257960), (440, 206368), (640, 141878), (704, 128980), (880, 103184), (1280, 70939), (1408, 64490), (1760, 51592), (2816, 32245), (3520, 25796), (6449, 14080), (7040, 12898)]