128096780

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{71}}^1\times {\mathrm{263}}^1$

素因数の和:364

約数の個数: 96

約数和(自身を含む): 319334400

約数和(自身を除く): 191237620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 71, 98, 140, 142, 196, 245, 263, 284, 343, 355, 490, 497, 526, 686, 710, 980, 994, 1052, 1315, 1372, 1420, 1715, 1841, 1988, 2485, 2630, 3430, 3479, 3682, 4970, 5260, 6860, 6958, 7364, 9205, 9940, 12887, 13916, 17395, 18410, 18673, 24353, 25774, 34790, 36820, 37346, 48706, 51548, 64435, 69580, 74692, 90209, 93365, 97412, 121765, 128870, 130711, 180418, 186730, 243530, 257740, 261422, 360836, 373460, 451045, 487060, 522844, 653555, 902090, 914977, 1307110, 1804180, 1829954, 2614220, 3659908, 4574885, 6404839, 9149770, 12809678, 18299540, 25619356, 32024195, 64048390, 128096780]

約数ペア:

[(1, 128096780), (2, 64048390), (4, 32024195), (5, 25619356), (7, 18299540), (10, 12809678), (14, 9149770), (20, 6404839), (28, 4574885), (35, 3659908), (49, 2614220), (70, 1829954), (71, 1804180), (98, 1307110), (140, 914977), (142, 902090), (196, 653555), (245, 522844), (263, 487060), (284, 451045), (343, 373460), (355, 360836), (490, 261422), (497, 257740), (526, 243530), (686, 186730), (710, 180418), (980, 130711), (994, 128870), (1052, 121765), (1315, 97412), (1372, 93365), (1420, 90209), (1715, 74692), (1841, 69580), (1988, 64435), (2485, 51548), (2630, 48706), (3430, 37346), (3479, 36820), (3682, 34790), (4970, 25774), (5260, 24353), (6860, 18673), (6958, 18410), (7364, 17395), (9205, 13916), (9940, 12887)]