20428464

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{373}}^1$

素因数の和:554

約数の個数: 80

約数和(自身を含む): 60845312

約数和(自身を除く): 40416848

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 163, 168, 326, 336, 373, 489, 652, 746, 978, 1119, 1141, 1304, 1492, 1956, 2238, 2282, 2608, 2611, 2984, 3423, 3912, 4476, 4564, 5222, 5968, 6846, 7824, 7833, 8952, 9128, 10444, 13692, 15666, 17904, 18256, 20888, 27384, 31332, 41776, 54768, 60799, 62664, 121598, 125328, 182397, 243196, 364794, 425593, 486392, 729588, 851186, 972784, 1276779, 1459176, 1702372, 2553558, 2918352, 3404744, 5107116, 6809488, 10214232, 20428464]

約数ペア:

[(1, 20428464), (2, 10214232), (3, 6809488), (4, 5107116), (6, 3404744), (7, 2918352), (8, 2553558), (12, 1702372), (14, 1459176), (16, 1276779), (21, 972784), (24, 851186), (28, 729588), (42, 486392), (48, 425593), (56, 364794), (84, 243196), (112, 182397), (163, 125328), (168, 121598), (326, 62664), (336, 60799), (373, 54768), (489, 41776), (652, 31332), (746, 27384), (978, 20888), (1119, 18256), (1141, 17904), (1304, 15666), (1492, 13692), (1956, 10444), (2238, 9128), (2282, 8952), (2608, 7833), (2611, 7824), (2984, 6846), (3423, 5968), (3912, 5222), (4476, 4564)]