263840

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1$

素因数の和:129

約数の個数: 48

約数和(自身を含む): 666792

約数和(自身を除く): 402952

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 97, 136, 160, 170, 194, 272, 340, 388, 485, 544, 680, 776, 970, 1360, 1552, 1649, 1940, 2720, 3104, 3298, 3880, 6596, 7760, 8245, 13192, 15520, 16490, 26384, 32980, 52768, 65960, 131920, 263840]

約数ペア:

[(1, 263840), (2, 131920), (4, 65960), (5, 52768), (8, 32980), (10, 26384), (16, 16490), (17, 15520), (20, 13192), (32, 8245), (34, 7760), (40, 6596), (68, 3880), (80, 3298), (85, 3104), (97, 2720), (136, 1940), (160, 1649), (170, 1552), (194, 1360), (272, 970), (340, 776), (388, 680), (485, 544)]