81320190

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{229}}^1$

素因数の和:354

約数の個数: 128

約数和(自身を含む): 238464000

約数和(自身を除く): 157143810

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 19, 21, 30, 35, 38, 42, 57, 70, 89, 95, 105, 114, 133, 178, 190, 210, 229, 266, 267, 285, 399, 445, 458, 534, 570, 623, 665, 687, 798, 890, 1145, 1246, 1330, 1335, 1374, 1603, 1691, 1869, 1995, 2290, 2670, 3115, 3206, 3382, 3435, 3738, 3990, 4351, 4809, 5073, 6230, 6870, 8015, 8455, 8702, 9345, 9618, 10146, 11837, 13053, 16030, 16910, 18690, 20381, 21755, 23674, 24045, 25365, 26106, 30457, 35511, 40762, 43510, 48090, 50730, 59185, 60914, 61143, 65265, 71022, 91371, 101905, 118370, 122286, 130530, 142667, 152285, 177555, 182742, 203810, 285334, 304570, 305715, 355110, 387239, 428001, 456855, 611430, 713335, 774478, 856002, 913710, 1161717, 1426670, 1936195, 2140005, 2323434, 2710673, 3872390, 4280010, 5421346, 5808585, 8132019, 11617170, 13553365, 16264038, 27106730, 40660095, 81320190]

約数ペア:

[(1, 81320190), (2, 40660095), (3, 27106730), (5, 16264038), (6, 13553365), (7, 11617170), (10, 8132019), (14, 5808585), (15, 5421346), (19, 4280010), (21, 3872390), (30, 2710673), (35, 2323434), (38, 2140005), (42, 1936195), (57, 1426670), (70, 1161717), (89, 913710), (95, 856002), (105, 774478), (114, 713335), (133, 611430), (178, 456855), (190, 428001), (210, 387239), (229, 355110), (266, 305715), (267, 304570), (285, 285334), (399, 203810), (445, 182742), (458, 177555), (534, 152285), (570, 142667), (623, 130530), (665, 122286), (687, 118370), (798, 101905), (890, 91371), (1145, 71022), (1246, 65265), (1330, 61143), (1335, 60914), (1374, 59185), (1603, 50730), (1691, 48090), (1869, 43510), (1995, 40762), (2290, 35511), (2670, 30457), (3115, 26106), (3206, 25365), (3382, 24045), (3435, 23674), (3738, 21755), (3990, 20381), (4351, 18690), (4809, 16910), (5073, 16030), (6230, 13053), (6870, 11837), (8015, 10146), (8455, 9618), (8702, 9345)]