644887040

素因数分解:

$2^9\times 5^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{97}}^1$

素因数の和:187

約数の個数: 240

約数和(自身を含む): 1851490872

約数和(自身を除く): 1206603832

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 53, 56, 64, 70, 80, 97, 98, 106, 112, 128, 140, 160, 194, 196, 212, 224, 245, 256, 265, 280, 320, 371, 388, 392, 424, 448, 485, 490, 512, 530, 560, 640, 679, 742, 776, 784, 848, 896, 970, 980, 1060, 1120, 1280, 1358, 1484, 1552, 1568, 1696, 1792, 1855, 1940, 1960, 2120, 2240, 2560, 2597, 2716, 2968, 3104, 3136, 3392, 3395, 3584, 3710, 3880, 3920, 4240, 4480, 4753, 5141, 5194, 5432, 5936, 6208, 6272, 6784, 6790, 7420, 7760, 7840, 8480, 8960, 9506, 10282, 10388, 10864, 11872, 12416, 12544, 12985, 13568, 13580, 14840, 15520, 15680, 16960, 17920, 19012, 20564, 20776, 21728, 23744, 23765, 24832, 25088, 25705, 25970, 27136, 27160, 29680, 31040, 31360, 33920, 35987, 38024, 41128, 41552, 43456, 47488, 47530, 49664, 51410, 51940, 54320, 59360, 62080, 62720, 67840, 71974, 76048, 82256, 83104, 86912, 94976, 95060, 102820, 103880, 108640, 118720, 124160, 125440, 135680, 143948, 152096, 164512, 166208, 173824, 179935, 189952, 190120, 205640, 207760, 217280, 237440, 248320, 251909, 287896, 304192, 329024, 332416, 347648, 359870, 380240, 411280, 415520, 434560, 474880, 503818, 575792, 608384, 658048, 664832, 719740, 760480, 822560, 831040, 869120, 949760, 1007636, 1151584, 1216768, 1259545, 1316096, 1329664, 1439480, 1520960, 1645120, 1662080, 1738240, 2015272, 2303168, 2433536, 2519090, 2632192, 2878960, 3041920, 3290240, 3324160, 4030544, 4606336, 5038180, 5757920, 6083840, 6580480, 6648320, 8061088, 9212672, 10076360, 11515840, 12167680, 13160960, 16122176, 18425344, 20152720, 23031680, 32244352, 40305440, 46063360, 64488704, 80610880, 92126720, 128977408, 161221760, 322443520, 644887040]

約数ペア:

[(1, 644887040), (2, 322443520), (4, 161221760), (5, 128977408), (7, 92126720), (8, 80610880), (10, 64488704), (14, 46063360), (16, 40305440), (20, 32244352), (28, 23031680), (32, 20152720), (35, 18425344), (40, 16122176), (49, 13160960), (53, 12167680), (56, 11515840), (64, 10076360), (70, 9212672), (80, 8061088), (97, 6648320), (98, 6580480), (106, 6083840), (112, 5757920), (128, 5038180), (140, 4606336), (160, 4030544), (194, 3324160), (196, 3290240), (212, 3041920), (224, 2878960), (245, 2632192), (256, 2519090), (265, 2433536), (280, 2303168), (320, 2015272), (371, 1738240), (388, 1662080), (392, 1645120), (424, 1520960), (448, 1439480), (485, 1329664), (490, 1316096), (512, 1259545), (530, 1216768), (560, 1151584), (640, 1007636), (679, 949760), (742, 869120), (776, 831040), (784, 822560), (848, 760480), (896, 719740), (970, 664832), (980, 658048), (1060, 608384), (1120, 575792), (1280, 503818), (1358, 474880), (1484, 434560), (1552, 415520), (1568, 411280), (1696, 380240), (1792, 359870), (1855, 347648), (1940, 332416), (1960, 329024), (2120, 304192), (2240, 287896), (2560, 251909), (2597, 248320), (2716, 237440), (2968, 217280), (3104, 207760), (3136, 205640), (3392, 190120), (3395, 189952), (3584, 179935), (3710, 173824), (3880, 166208), (3920, 164512), (4240, 152096), (4480, 143948), (4753, 135680), (5141, 125440), (5194, 124160), (5432, 118720), (5936, 108640), (6208, 103880), (6272, 102820), (6784, 95060), (6790, 94976), (7420, 86912), (7760, 83104), (7840, 82256), (8480, 76048), (8960, 71974), (9506, 67840), (10282, 62720), (10388, 62080), (10864, 59360), (11872, 54320), (12416, 51940), (12544, 51410), (12985, 49664), (13568, 47530), (13580, 47488), (14840, 43456), (15520, 41552), (15680, 41128), (16960, 38024), (17920, 35987), (19012, 33920), (20564, 31360), (20776, 31040), (21728, 29680), (23744, 27160), (23765, 27136), (24832, 25970), (25088, 25705)]