72038020

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{523}}^1$

素因数の和:700

約数の個数: 48

約数和(自身を含む): 155288448

約数和(自身を除く): 83250428

約数列:

[1, 2, 4, 5, 10, 20, 71, 97, 142, 194, 284, 355, 388, 485, 523, 710, 970, 1046, 1420, 1940, 2092, 2615, 5230, 6887, 10460, 13774, 27548, 34435, 37133, 50731, 68870, 74266, 101462, 137740, 148532, 185665, 202924, 253655, 371330, 507310, 742660, 1014620, 3601901, 7203802, 14407604, 18009505, 36019010, 72038020]

約数ペア:

[(1, 72038020), (2, 36019010), (4, 18009505), (5, 14407604), (10, 7203802), (20, 3601901), (71, 1014620), (97, 742660), (142, 507310), (194, 371330), (284, 253655), (355, 202924), (388, 185665), (485, 148532), (523, 137740), (710, 101462), (970, 74266), (1046, 68870), (1420, 50731), (1940, 37133), (2092, 34435), (2615, 27548), (5230, 13774), (6887, 10460)]