27813380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{101}}^1\times {\mathrm{281}}^1$

素因数の和:405

約数の個数: 72

約数和(自身を含む): 68861016

約数和(自身を除く): 41047636

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 101, 140, 196, 202, 245, 281, 404, 490, 505, 562, 707, 980, 1010, 1124, 1405, 1414, 1967, 2020, 2810, 2828, 3535, 3934, 4949, 5620, 7070, 7868, 9835, 9898, 13769, 14140, 19670, 19796, 24745, 27538, 28381, 39340, 49490, 55076, 56762, 68845, 98980, 113524, 137690, 141905, 198667, 275380, 283810, 397334, 567620, 794668, 993335, 1390669, 1986670, 2781338, 3973340, 5562676, 6953345, 13906690, 27813380]

約数ペア:

[(1, 27813380), (2, 13906690), (4, 6953345), (5, 5562676), (7, 3973340), (10, 2781338), (14, 1986670), (20, 1390669), (28, 993335), (35, 794668), (49, 567620), (70, 397334), (98, 283810), (101, 275380), (140, 198667), (196, 141905), (202, 137690), (245, 113524), (281, 98980), (404, 68845), (490, 56762), (505, 55076), (562, 49490), (707, 39340), (980, 28381), (1010, 27538), (1124, 24745), (1405, 19796), (1414, 19670), (1967, 14140), (2020, 13769), (2810, 9898), (2828, 9835), (3535, 7868), (3934, 7070), (4949, 5620)]