131034680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{20347}}^1$

素因数の和:20388

約数の個数: 64

約数和(自身を含む): 351613440

約数和(自身を除く): 220578760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 322, 460, 644, 805, 920, 1288, 1610, 3220, 6440, 20347, 40694, 81388, 101735, 142429, 162776, 203470, 284858, 406940, 467981, 569716, 712145, 813880, 935962, 1139432, 1424290, 1871924, 2339905, 2848580, 3275867, 3743848, 4679810, 5697160, 6551734, 9359620, 13103468, 16379335, 18719240, 26206936, 32758670, 65517340, 131034680]

約数ペア:

[(1, 131034680), (2, 65517340), (4, 32758670), (5, 26206936), (7, 18719240), (8, 16379335), (10, 13103468), (14, 9359620), (20, 6551734), (23, 5697160), (28, 4679810), (35, 3743848), (40, 3275867), (46, 2848580), (56, 2339905), (70, 1871924), (92, 1424290), (115, 1139432), (140, 935962), (161, 813880), (184, 712145), (230, 569716), (280, 467981), (322, 406940), (460, 284858), (644, 203470), (805, 162776), (920, 142429), (1288, 101735), (1610, 81388), (3220, 40694), (6440, 20347)]