261605120

素因数分解:

$2^8\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{97}}^1$

素因数の和:175

約数の個数: 216

約数和(自身を含む): 753573744

約数和(自身を除く): 491968624

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 43, 49, 56, 64, 70, 80, 86, 97, 98, 112, 128, 140, 160, 172, 194, 196, 215, 224, 245, 256, 280, 301, 320, 344, 388, 392, 430, 448, 485, 490, 560, 602, 640, 679, 688, 776, 784, 860, 896, 970, 980, 1120, 1204, 1280, 1358, 1376, 1505, 1552, 1568, 1720, 1792, 1940, 1960, 2107, 2240, 2408, 2716, 2752, 3010, 3104, 3136, 3395, 3440, 3880, 3920, 4171, 4214, 4480, 4753, 4816, 5432, 5504, 6020, 6208, 6272, 6790, 6880, 7760, 7840, 8342, 8428, 8960, 9506, 9632, 10535, 10864, 11008, 12040, 12416, 12544, 13580, 13760, 15520, 15680, 16684, 16856, 19012, 19264, 20855, 21070, 21728, 23765, 24080, 24832, 27160, 27520, 29197, 31040, 31360, 33368, 33712, 38024, 38528, 41710, 42140, 43456, 47530, 48160, 54320, 55040, 58394, 62080, 62720, 66736, 67424, 76048, 77056, 83420, 84280, 86912, 95060, 96320, 108640, 116788, 124160, 133472, 134848, 145985, 152096, 166840, 168560, 173824, 190120, 192640, 204379, 217280, 233576, 266944, 269696, 291970, 304192, 333680, 337120, 380240, 385280, 408758, 434560, 467152, 533888, 539392, 583940, 608384, 667360, 674240, 760480, 817516, 869120, 934304, 1021895, 1067776, 1167880, 1216768, 1334720, 1348480, 1520960, 1635032, 1868608, 2043790, 2335760, 2669440, 2696960, 3041920, 3270064, 3737216, 4087580, 4671520, 5338880, 6083840, 6540128, 7474432, 8175160, 9343040, 13080256, 16350320, 18686080, 26160512, 32700640, 37372160, 52321024, 65401280, 130802560, 261605120]

約数ペア:

[(1, 261605120), (2, 130802560), (4, 65401280), (5, 52321024), (7, 37372160), (8, 32700640), (10, 26160512), (14, 18686080), (16, 16350320), (20, 13080256), (28, 9343040), (32, 8175160), (35, 7474432), (40, 6540128), (43, 6083840), (49, 5338880), (56, 4671520), (64, 4087580), (70, 3737216), (80, 3270064), (86, 3041920), (97, 2696960), (98, 2669440), (112, 2335760), (128, 2043790), (140, 1868608), (160, 1635032), (172, 1520960), (194, 1348480), (196, 1334720), (215, 1216768), (224, 1167880), (245, 1067776), (256, 1021895), (280, 934304), (301, 869120), (320, 817516), (344, 760480), (388, 674240), (392, 667360), (430, 608384), (448, 583940), (485, 539392), (490, 533888), (560, 467152), (602, 434560), (640, 408758), (679, 385280), (688, 380240), (776, 337120), (784, 333680), (860, 304192), (896, 291970), (970, 269696), (980, 266944), (1120, 233576), (1204, 217280), (1280, 204379), (1358, 192640), (1376, 190120), (1505, 173824), (1552, 168560), (1568, 166840), (1720, 152096), (1792, 145985), (1940, 134848), (1960, 133472), (2107, 124160), (2240, 116788), (2408, 108640), (2716, 96320), (2752, 95060), (3010, 86912), (3104, 84280), (3136, 83420), (3395, 77056), (3440, 76048), (3880, 67424), (3920, 66736), (4171, 62720), (4214, 62080), (4480, 58394), (4753, 55040), (4816, 54320), (5432, 48160), (5504, 47530), (6020, 43456), (6208, 42140), (6272, 41710), (6790, 38528), (6880, 38024), (7760, 33712), (7840, 33368), (8342, 31360), (8428, 31040), (8960, 29197), (9506, 27520), (9632, 27160), (10535, 24832), (10864, 24080), (11008, 23765), (12040, 21728), (12416, 21070), (12544, 20855), (13580, 19264), (13760, 19012), (15520, 16856), (15680, 16684)]