256655800

素因数分解:

$2^3\times 5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1$

素因数の和:218

約数の個数: 192

約数和(自身を含む): 693036000

約数和(自身を除く): 436380200

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 25, 29, 34, 38, 40, 50, 58, 68, 76, 85, 95, 100, 116, 136, 137, 145, 152, 170, 190, 200, 232, 274, 290, 323, 340, 380, 425, 475, 493, 548, 551, 580, 646, 680, 685, 725, 760, 850, 950, 986, 1096, 1102, 1160, 1292, 1370, 1450, 1615, 1700, 1900, 1972, 2204, 2329, 2465, 2584, 2603, 2740, 2755, 2900, 3230, 3400, 3425, 3800, 3944, 3973, 4408, 4658, 4930, 5206, 5480, 5510, 5800, 6460, 6850, 7946, 8075, 9316, 9367, 9860, 10412, 11020, 11645, 12325, 12920, 13015, 13700, 13775, 15892, 16150, 18632, 18734, 19720, 19865, 20824, 22040, 23290, 24650, 26030, 27400, 27550, 31784, 32300, 37468, 39730, 44251, 46580, 46835, 49300, 52060, 55100, 58225, 64600, 65075, 67541, 74936, 75487, 79460, 88502, 93160, 93670, 98600, 99325, 104120, 110200, 116450, 130150, 135082, 150974, 158920, 177004, 187340, 198650, 221255, 232900, 234175, 260300, 270164, 301948, 337705, 354008, 374680, 377435, 397300, 442510, 465800, 468350, 520600, 540328, 603896, 675410, 754870, 794600, 885020, 936700, 1106275, 1283279, 1350820, 1509740, 1688525, 1770040, 1873400, 1887175, 2212550, 2566558, 2701640, 3019480, 3377050, 3774350, 4425100, 5133116, 6416395, 6754100, 7548700, 8850200, 10266232, 12832790, 13508200, 15097400, 25665580, 32081975, 51331160, 64163950, 128327900, 256655800]

約数ペア:

[(1, 256655800), (2, 128327900), (4, 64163950), (5, 51331160), (8, 32081975), (10, 25665580), (17, 15097400), (19, 13508200), (20, 12832790), (25, 10266232), (29, 8850200), (34, 7548700), (38, 6754100), (40, 6416395), (50, 5133116), (58, 4425100), (68, 3774350), (76, 3377050), (85, 3019480), (95, 2701640), (100, 2566558), (116, 2212550), (136, 1887175), (137, 1873400), (145, 1770040), (152, 1688525), (170, 1509740), (190, 1350820), (200, 1283279), (232, 1106275), (274, 936700), (290, 885020), (323, 794600), (340, 754870), (380, 675410), (425, 603896), (475, 540328), (493, 520600), (548, 468350), (551, 465800), (580, 442510), (646, 397300), (680, 377435), (685, 374680), (725, 354008), (760, 337705), (850, 301948), (950, 270164), (986, 260300), (1096, 234175), (1102, 232900), (1160, 221255), (1292, 198650), (1370, 187340), (1450, 177004), (1615, 158920), (1700, 150974), (1900, 135082), (1972, 130150), (2204, 116450), (2329, 110200), (2465, 104120), (2584, 99325), (2603, 98600), (2740, 93670), (2755, 93160), (2900, 88502), (3230, 79460), (3400, 75487), (3425, 74936), (3800, 67541), (3944, 65075), (3973, 64600), (4408, 58225), (4658, 55100), (4930, 52060), (5206, 49300), (5480, 46835), (5510, 46580), (5800, 44251), (6460, 39730), (6850, 37468), (7946, 32300), (8075, 31784), (9316, 27550), (9367, 27400), (9860, 26030), (10412, 24650), (11020, 23290), (11645, 22040), (12325, 20824), (12920, 19865), (13015, 19720), (13700, 18734), (13775, 18632), (15892, 16150)]