81722876

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1471}}^1$

素因数の和:1554

約数の個数: 48

約数和(自身を含む): 163215360

約数和(自身を除く): 81492484

約数列:

[1, 2, 4, 17, 19, 34, 38, 43, 68, 76, 86, 172, 323, 646, 731, 817, 1292, 1462, 1471, 1634, 2924, 2942, 3268, 5884, 13889, 25007, 27778, 27949, 50014, 55556, 55898, 63253, 100028, 111796, 126506, 253012, 475133, 950266, 1075301, 1201807, 1900532, 2150602, 2403614, 4301204, 4807228, 20430719, 40861438, 81722876]

約数ペア:

[(1, 81722876), (2, 40861438), (4, 20430719), (17, 4807228), (19, 4301204), (34, 2403614), (38, 2150602), (43, 1900532), (68, 1201807), (76, 1075301), (86, 950266), (172, 475133), (323, 253012), (646, 126506), (731, 111796), (817, 100028), (1292, 63253), (1462, 55898), (1471, 55556), (1634, 50014), (2924, 27949), (2942, 27778), (3268, 25007), (5884, 13889)]