218368900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{263}}^1$

素因数の和:338

約数の個数: 108

約数和(自身を含む): 523841472

約数和(自身を除く): 305472572

約数列:

[1, 2, 4, 5, 10, 19, 20, 23, 25, 38, 46, 50, 76, 92, 95, 100, 115, 190, 230, 263, 361, 380, 437, 460, 475, 526, 575, 722, 874, 950, 1052, 1150, 1315, 1444, 1748, 1805, 1900, 2185, 2300, 2630, 3610, 4370, 4997, 5260, 6049, 6575, 7220, 8303, 8740, 9025, 9994, 10925, 12098, 13150, 16606, 18050, 19988, 21850, 24196, 24985, 26300, 30245, 33212, 36100, 41515, 43700, 49970, 60490, 83030, 94943, 99940, 114931, 120980, 124925, 151225, 166060, 189886, 207575, 229862, 249850, 302450, 379772, 415150, 459724, 474715, 499700, 574655, 604900, 830300, 949430, 1149310, 1898860, 2183689, 2298620, 2373575, 2873275, 4367378, 4747150, 5746550, 8734756, 9494300, 10918445, 11493100, 21836890, 43673780, 54592225, 109184450, 218368900]

約数ペア:

[(1, 218368900), (2, 109184450), (4, 54592225), (5, 43673780), (10, 21836890), (19, 11493100), (20, 10918445), (23, 9494300), (25, 8734756), (38, 5746550), (46, 4747150), (50, 4367378), (76, 2873275), (92, 2373575), (95, 2298620), (100, 2183689), (115, 1898860), (190, 1149310), (230, 949430), (263, 830300), (361, 604900), (380, 574655), (437, 499700), (460, 474715), (475, 459724), (526, 415150), (575, 379772), (722, 302450), (874, 249850), (950, 229862), (1052, 207575), (1150, 189886), (1315, 166060), (1444, 151225), (1748, 124925), (1805, 120980), (1900, 114931), (2185, 99940), (2300, 94943), (2630, 83030), (3610, 60490), (4370, 49970), (4997, 43700), (5260, 41515), (6049, 36100), (6575, 33212), (7220, 30245), (8303, 26300), (8740, 24985), (9025, 24196), (9994, 21850), (10925, 19988), (12098, 18050), (13150, 16606)]