82865920

素因数分解:

$2^8\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1579}}^1$

素因数の和:1641

約数の個数: 72

約数和(自身を含む): 203459760

約数和(自身を除く): 120593840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 128, 160, 164, 205, 256, 320, 328, 410, 640, 656, 820, 1280, 1312, 1579, 1640, 2624, 3158, 3280, 5248, 6316, 6560, 7895, 10496, 12632, 13120, 15790, 25264, 26240, 31580, 50528, 52480, 63160, 64739, 101056, 126320, 129478, 202112, 252640, 258956, 323695, 404224, 505280, 517912, 647390, 1010560, 1035824, 1294780, 2021120, 2071648, 2589560, 4143296, 5179120, 8286592, 10358240, 16573184, 20716480, 41432960, 82865920]

約数ペア:

[(1, 82865920), (2, 41432960), (4, 20716480), (5, 16573184), (8, 10358240), (10, 8286592), (16, 5179120), (20, 4143296), (32, 2589560), (40, 2071648), (41, 2021120), (64, 1294780), (80, 1035824), (82, 1010560), (128, 647390), (160, 517912), (164, 505280), (205, 404224), (256, 323695), (320, 258956), (328, 252640), (410, 202112), (640, 129478), (656, 126320), (820, 101056), (1280, 64739), (1312, 63160), (1579, 52480), (1640, 50528), (2624, 31580), (3158, 26240), (3280, 25264), (5248, 15790), (6316, 13120), (6560, 12632), (7895, 10496)]