28177912

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{373}}^1$

素因数の和:476

約数の個数: 64

約数和(自身を含む): 64627200

約数和(自身を除く): 36449288

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 71, 76, 133, 142, 152, 266, 284, 373, 497, 532, 568, 746, 994, 1064, 1349, 1492, 1988, 2611, 2698, 2984, 3976, 5222, 5396, 7087, 9443, 10444, 10792, 14174, 18886, 20888, 26483, 28348, 37772, 49609, 52966, 56696, 75544, 99218, 105932, 185381, 198436, 211864, 370762, 396872, 503177, 741524, 1006354, 1483048, 2012708, 3522239, 4025416, 7044478, 14088956, 28177912]

約数ペア:

[(1, 28177912), (2, 14088956), (4, 7044478), (7, 4025416), (8, 3522239), (14, 2012708), (19, 1483048), (28, 1006354), (38, 741524), (56, 503177), (71, 396872), (76, 370762), (133, 211864), (142, 198436), (152, 185381), (266, 105932), (284, 99218), (373, 75544), (497, 56696), (532, 52966), (568, 49609), (746, 37772), (994, 28348), (1064, 26483), (1349, 20888), (1492, 18886), (1988, 14174), (2611, 10792), (2698, 10444), (2984, 9443), (3976, 7087), (5222, 5396)]