287343320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{457}}^1\times {\mathrm{1429}}^1$

素因数の和:1908

約数の個数: 64

約数和(自身を含む): 707335200

約数和(自身を除く): 419991880

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 457, 914, 1429, 1828, 2285, 2858, 3656, 4570, 5027, 5716, 7145, 9140, 10054, 11432, 14290, 15719, 18280, 20108, 25135, 28580, 31438, 40216, 50270, 57160, 62876, 78595, 100540, 125752, 157190, 201080, 314380, 628760, 653053, 1306106, 2612212, 3265265, 5224424, 6530530, 7183583, 13061060, 14367166, 26122120, 28734332, 35917915, 57468664, 71835830, 143671660, 287343320]

約数ペア:

[(1, 287343320), (2, 143671660), (4, 71835830), (5, 57468664), (8, 35917915), (10, 28734332), (11, 26122120), (20, 14367166), (22, 13061060), (40, 7183583), (44, 6530530), (55, 5224424), (88, 3265265), (110, 2612212), (220, 1306106), (440, 653053), (457, 628760), (914, 314380), (1429, 201080), (1828, 157190), (2285, 125752), (2858, 100540), (3656, 78595), (4570, 62876), (5027, 57160), (5716, 50270), (7145, 40216), (9140, 31438), (10054, 28580), (11432, 25135), (14290, 20108), (15719, 18280)]