123203920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{151}}^1$

素因数の和:249

約数の個数: 160

約数和(自身を含む): 347406336

約数和(自身を除く): 224202416

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 47, 56, 62, 70, 80, 94, 112, 124, 140, 151, 155, 188, 217, 235, 248, 280, 302, 310, 329, 376, 434, 470, 496, 560, 604, 620, 658, 752, 755, 868, 940, 1057, 1085, 1208, 1240, 1316, 1457, 1510, 1645, 1736, 1880, 2114, 2170, 2416, 2480, 2632, 2914, 3020, 3290, 3472, 3760, 4228, 4340, 4681, 5264, 5285, 5828, 6040, 6580, 7097, 7285, 8456, 8680, 9362, 10199, 10570, 11656, 12080, 13160, 14194, 14570, 16912, 17360, 18724, 20398, 21140, 23312, 23405, 26320, 28388, 29140, 32767, 35485, 37448, 40796, 42280, 46810, 49679, 50995, 56776, 58280, 65534, 70970, 74896, 81592, 84560, 93620, 99358, 101990, 113552, 116560, 131068, 141940, 163184, 163835, 187240, 198716, 203980, 220007, 248395, 262136, 283880, 327670, 374480, 397432, 407960, 440014, 496790, 524272, 567760, 655340, 794864, 815920, 880028, 993580, 1100035, 1310680, 1540049, 1760056, 1987160, 2200070, 2621360, 3080098, 3520112, 3974320, 4400140, 6160196, 7700245, 8800280, 12320392, 15400490, 17600560, 24640784, 30800980, 61601960, 123203920]

約数ペア:

[(1, 123203920), (2, 61601960), (4, 30800980), (5, 24640784), (7, 17600560), (8, 15400490), (10, 12320392), (14, 8800280), (16, 7700245), (20, 6160196), (28, 4400140), (31, 3974320), (35, 3520112), (40, 3080098), (47, 2621360), (56, 2200070), (62, 1987160), (70, 1760056), (80, 1540049), (94, 1310680), (112, 1100035), (124, 993580), (140, 880028), (151, 815920), (155, 794864), (188, 655340), (217, 567760), (235, 524272), (248, 496790), (280, 440014), (302, 407960), (310, 397432), (329, 374480), (376, 327670), (434, 283880), (470, 262136), (496, 248395), (560, 220007), (604, 203980), (620, 198716), (658, 187240), (752, 163835), (755, 163184), (868, 141940), (940, 131068), (1057, 116560), (1085, 113552), (1208, 101990), (1240, 99358), (1316, 93620), (1457, 84560), (1510, 81592), (1645, 74896), (1736, 70970), (1880, 65534), (2114, 58280), (2170, 56776), (2416, 50995), (2480, 49679), (2632, 46810), (2914, 42280), (3020, 40796), (3290, 37448), (3472, 35485), (3760, 32767), (4228, 29140), (4340, 28388), (4681, 26320), (5264, 23405), (5285, 23312), (5828, 21140), (6040, 20398), (6580, 18724), (7097, 17360), (7285, 16912), (8456, 14570), (8680, 14194), (9362, 13160), (10199, 12080), (10570, 11656)]