204985456

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{1999}}^1$

素因数の和:2066

約数の個数: 80

約数和(自身を含む): 468720000

約数和(自身を除く): 263734544

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 29, 34, 52, 58, 68, 104, 116, 136, 208, 221, 232, 272, 377, 442, 464, 493, 754, 884, 986, 1508, 1768, 1972, 1999, 3016, 3536, 3944, 3998, 6032, 6409, 7888, 7996, 12818, 15992, 25636, 25987, 31984, 33983, 51272, 51974, 57971, 67966, 102544, 103948, 115942, 135932, 207896, 231884, 271864, 415792, 441779, 463768, 543728, 753623, 883558, 927536, 985507, 1507246, 1767116, 1971014, 3014492, 3534232, 3942028, 6028984, 7068464, 7884056, 12057968, 12811591, 15768112, 25623182, 51246364, 102492728, 204985456]

約数ペア:

[(1, 204985456), (2, 102492728), (4, 51246364), (8, 25623182), (13, 15768112), (16, 12811591), (17, 12057968), (26, 7884056), (29, 7068464), (34, 6028984), (52, 3942028), (58, 3534232), (68, 3014492), (104, 1971014), (116, 1767116), (136, 1507246), (208, 985507), (221, 927536), (232, 883558), (272, 753623), (377, 543728), (442, 463768), (464, 441779), (493, 415792), (754, 271864), (884, 231884), (986, 207896), (1508, 135932), (1768, 115942), (1972, 103948), (1999, 102544), (3016, 67966), (3536, 57971), (3944, 51974), (3998, 51272), (6032, 33983), (6409, 31984), (7888, 25987), (7996, 25636), (12818, 15992)]