65279440

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{641}}^1$

素因数の和:740

約数の個数: 80

約数和(自身を含む): 162400320

約数和(自身を除く): 97120880

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 67, 76, 80, 95, 134, 152, 190, 268, 304, 335, 380, 536, 641, 670, 760, 1072, 1273, 1282, 1340, 1520, 2546, 2564, 2680, 3205, 5092, 5128, 5360, 6365, 6410, 10184, 10256, 12179, 12730, 12820, 20368, 24358, 25460, 25640, 42947, 48716, 50920, 51280, 60895, 85894, 97432, 101840, 121790, 171788, 194864, 214735, 243580, 343576, 429470, 487160, 687152, 815993, 858940, 974320, 1631986, 1717880, 3263972, 3435760, 4079965, 6527944, 8159930, 13055888, 16319860, 32639720, 65279440]

約数ペア:

[(1, 65279440), (2, 32639720), (4, 16319860), (5, 13055888), (8, 8159930), (10, 6527944), (16, 4079965), (19, 3435760), (20, 3263972), (38, 1717880), (40, 1631986), (67, 974320), (76, 858940), (80, 815993), (95, 687152), (134, 487160), (152, 429470), (190, 343576), (268, 243580), (304, 214735), (335, 194864), (380, 171788), (536, 121790), (641, 101840), (670, 97432), (760, 85894), (1072, 60895), (1273, 51280), (1282, 50920), (1340, 48716), (1520, 42947), (2546, 25640), (2564, 25460), (2680, 24358), (3205, 20368), (5092, 12820), (5128, 12730), (5360, 12179), (6365, 10256), (6410, 10184)]