161221760

素因数分解:

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

素因数の和:183

約数の個数: 192

約数和(自身を含む): 461515320

約数和(自身を除く): 300293560

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, 265, 280, 320, 371, 388, 392, 424, 448, 485, 490, 530, 560, 640, 679, 742, 776, 784, 848, 896, 970, 980, 1060, 1120, 1358, 1484, 1552, 1568, 1696, 1855, 1940, 1960, 2120, 2240, 2597, 2716, 2968, 3104, 3136, 3392, 3395, 3710, 3880, 3920, 4240, 4480, 4753, 5141, 5194, 5432, 5936, 6208, 6272, 6784, 6790, 7420, 7760, 7840, 8480, 9506, 10282, 10388, 10864, 11872, 12416, 12985, 13580, 14840, 15520, 15680, 16960, 19012, 20564, 20776, 21728, 23744, 23765, 25705, 25970, 27160, 29680, 31040, 31360, 33920, 35987, 38024, 41128, 41552, 43456, 47488, 47530, 51410, 51940, 54320, 59360, 62080, 71974, 76048, 82256, 83104, 86912, 95060, 102820, 103880, 108640, 118720, 143948, 152096, 164512, 166208, 179935, 190120, 205640, 207760, 217280, 237440, 251909, 287896, 304192, 329024, 332416, 359870, 380240, 411280, 415520, 434560, 503818, 575792, 608384, 658048, 719740, 760480, 822560, 831040, 1007636, 1151584, 1259545, 1439480, 1520960, 1645120, 1662080, 2015272, 2303168, 2519090, 2878960, 3041920, 3290240, 4030544, 4606336, 5038180, 5757920, 8061088, 10076360, 11515840, 16122176, 20152720, 23031680, 32244352, 40305440, 80610880, 161221760]

約数ペア:

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