1390490300

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{677}}^1$

素因数の和:780

約数の個数: 144

約数和(自身を含む): 3389783040

約数和(自身を除く): 1999292740

約数列:

[1, 2, 4, 5, 10, 19, 20, 23, 25, 38, 46, 47, 50, 76, 92, 94, 95, 100, 115, 188, 190, 230, 235, 380, 437, 460, 470, 475, 575, 677, 874, 893, 940, 950, 1081, 1150, 1175, 1354, 1748, 1786, 1900, 2162, 2185, 2300, 2350, 2708, 3385, 3572, 4324, 4370, 4465, 4700, 5405, 6770, 8740, 8930, 10810, 10925, 12863, 13540, 15571, 16925, 17860, 20539, 21620, 21850, 22325, 25726, 27025, 31142, 31819, 33850, 41078, 43700, 44650, 51452, 54050, 62284, 63638, 64315, 67700, 77855, 82156, 89300, 102695, 108100, 127276, 128630, 155710, 159095, 205390, 257260, 295849, 311420, 318190, 321575, 389275, 410780, 513475, 591698, 604561, 636380, 643150, 731837, 778550, 795475, 1026950, 1183396, 1209122, 1286300, 1463674, 1479245, 1557100, 1590950, 2053900, 2418244, 2927348, 2958490, 3022805, 3181900, 3659185, 5916980, 6045610, 7318370, 7396225, 12091220, 13904903, 14636740, 14792450, 15114025, 18295925, 27809806, 29584900, 30228050, 36591850, 55619612, 60456100, 69524515, 73183700, 139049030, 278098060, 347622575, 695245150, 1390490300]

約数ペア:

[(1, 1390490300), (2, 695245150), (4, 347622575), (5, 278098060), (10, 139049030), (19, 73183700), (20, 69524515), (23, 60456100), (25, 55619612), (38, 36591850), (46, 30228050), (47, 29584900), (50, 27809806), (76, 18295925), (92, 15114025), (94, 14792450), (95, 14636740), (100, 13904903), (115, 12091220), (188, 7396225), (190, 7318370), (230, 6045610), (235, 5916980), (380, 3659185), (437, 3181900), (460, 3022805), (470, 2958490), (475, 2927348), (575, 2418244), (677, 2053900), (874, 1590950), (893, 1557100), (940, 1479245), (950, 1463674), (1081, 1286300), (1150, 1209122), (1175, 1183396), (1354, 1026950), (1748, 795475), (1786, 778550), (1900, 731837), (2162, 643150), (2185, 636380), (2300, 604561), (2350, 591698), (2708, 513475), (3385, 410780), (3572, 389275), (4324, 321575), (4370, 318190), (4465, 311420), (4700, 295849), (5405, 257260), (6770, 205390), (8740, 159095), (8930, 155710), (10810, 128630), (10925, 127276), (12863, 108100), (13540, 102695), (15571, 89300), (16925, 82156), (17860, 77855), (20539, 67700), (21620, 64315), (21850, 63638), (22325, 62284), (25726, 54050), (27025, 51452), (31142, 44650), (31819, 43700), (33850, 41078)]