249975440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{21851}}^1$

素因数の和:21888

約数の個数: 80

約数和(自身を含む): 682831296

約数和(自身を除く): 432855856

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 40, 44, 52, 55, 65, 80, 88, 104, 110, 130, 143, 176, 208, 220, 260, 286, 440, 520, 572, 715, 880, 1040, 1144, 1430, 2288, 2860, 5720, 11440, 21851, 43702, 87404, 109255, 174808, 218510, 240361, 284063, 349616, 437020, 480722, 568126, 874040, 961444, 1136252, 1201805, 1420315, 1748080, 1922888, 2272504, 2403610, 2840630, 3124693, 3845776, 4545008, 4807220, 5681260, 6249386, 9614440, 11362520, 12498772, 15623465, 19228880, 22725040, 24997544, 31246930, 49995088, 62493860, 124987720, 249975440]

約数ペア:

[(1, 249975440), (2, 124987720), (4, 62493860), (5, 49995088), (8, 31246930), (10, 24997544), (11, 22725040), (13, 19228880), (16, 15623465), (20, 12498772), (22, 11362520), (26, 9614440), (40, 6249386), (44, 5681260), (52, 4807220), (55, 4545008), (65, 3845776), (80, 3124693), (88, 2840630), (104, 2403610), (110, 2272504), (130, 1922888), (143, 1748080), (176, 1420315), (208, 1201805), (220, 1136252), (260, 961444), (286, 874040), (440, 568126), (520, 480722), (572, 437020), (715, 349616), (880, 284063), (1040, 240361), (1144, 218510), (1430, 174808), (2288, 109255), (2860, 87404), (5720, 43702), (11440, 21851)]