20890436

素因数分解:

$2^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1$

素因数の和:284

約数の個数: 48

約数和(自身を含む): 43182720

約数和(自身を除く): 22292284

約数列:

[1, 2, 4, 7, 14, 28, 83, 89, 101, 166, 178, 202, 332, 356, 404, 581, 623, 707, 1162, 1246, 1414, 2324, 2492, 2828, 7387, 8383, 8989, 14774, 16766, 17978, 29548, 33532, 35956, 51709, 58681, 62923, 103418, 117362, 125846, 206836, 234724, 251692, 746087, 1492174, 2984348, 5222609, 10445218, 20890436]

約数ペア:

[(1, 20890436), (2, 10445218), (4, 5222609), (7, 2984348), (14, 1492174), (28, 746087), (83, 251692), (89, 234724), (101, 206836), (166, 125846), (178, 117362), (202, 103418), (332, 62923), (356, 58681), (404, 51709), (581, 35956), (623, 33532), (707, 29548), (1162, 17978), (1246, 16766), (1414, 14774), (2324, 8989), (2492, 8383), (2828, 7387)]