81509344

素因数分解:

$2^5\times 7^2\times {\mathrm{227}}^1\times {\mathrm{229}}^1$

素因数の和:480

約数の個数: 72

約数和(自身を含む): 188312040

約数和(自身を除く): 106802696

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 98, 112, 196, 224, 227, 229, 392, 454, 458, 784, 908, 916, 1568, 1589, 1603, 1816, 1832, 3178, 3206, 3632, 3664, 6356, 6412, 7264, 7328, 11123, 11221, 12712, 12824, 22246, 22442, 25424, 25648, 44492, 44884, 50848, 51296, 51983, 88984, 89768, 103966, 177968, 179536, 207932, 355936, 359072, 363881, 415864, 727762, 831728, 1455524, 1663456, 2547167, 2911048, 5094334, 5822096, 10188668, 11644192, 20377336, 40754672, 81509344]

約数ペア:

[(1, 81509344), (2, 40754672), (4, 20377336), (7, 11644192), (8, 10188668), (14, 5822096), (16, 5094334), (28, 2911048), (32, 2547167), (49, 1663456), (56, 1455524), (98, 831728), (112, 727762), (196, 415864), (224, 363881), (227, 359072), (229, 355936), (392, 207932), (454, 179536), (458, 177968), (784, 103966), (908, 89768), (916, 88984), (1568, 51983), (1589, 51296), (1603, 50848), (1816, 44884), (1832, 44492), (3178, 25648), (3206, 25424), (3632, 22442), (3664, 22246), (6356, 12824), (6412, 12712), (7264, 11221), (7328, 11123)]