20574512

素因数分解:

$2^4\times 7^3\times {\mathrm{23}}^1\times {\mathrm{163}}^1$

素因数の和:215

約数の個数: 80

約数和(自身を含む): 48806400

約数和(自身を除く): 28231888

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 46, 49, 56, 92, 98, 112, 161, 163, 184, 196, 322, 326, 343, 368, 392, 644, 652, 686, 784, 1127, 1141, 1288, 1304, 1372, 2254, 2282, 2576, 2608, 2744, 3749, 4508, 4564, 5488, 7498, 7889, 7987, 9016, 9128, 14996, 15778, 15974, 18032, 18256, 26243, 29992, 31556, 31948, 52486, 55909, 59984, 63112, 63896, 104972, 111818, 126224, 127792, 183701, 209944, 223636, 367402, 419888, 447272, 734804, 894544, 1285907, 1469608, 2571814, 2939216, 5143628, 10287256, 20574512]

約数ペア:

[(1, 20574512), (2, 10287256), (4, 5143628), (7, 2939216), (8, 2571814), (14, 1469608), (16, 1285907), (23, 894544), (28, 734804), (46, 447272), (49, 419888), (56, 367402), (92, 223636), (98, 209944), (112, 183701), (161, 127792), (163, 126224), (184, 111818), (196, 104972), (322, 63896), (326, 63112), (343, 59984), (368, 55909), (392, 52486), (644, 31948), (652, 31556), (686, 29992), (784, 26243), (1127, 18256), (1141, 18032), (1288, 15974), (1304, 15778), (1372, 14996), (2254, 9128), (2282, 9016), (2576, 7987), (2608, 7889), (2744, 7498), (3749, 5488), (4508, 4564)]