84385100

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{167}}^1$

素因数の和:375

約数の個数: 72

約数和(自身を含む): 191321088

約数和(自身を除く): 106935988

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 155, 163, 167, 310, 326, 334, 620, 652, 668, 775, 815, 835, 1550, 1630, 1670, 3100, 3260, 3340, 4075, 4175, 5053, 5177, 8150, 8350, 10106, 10354, 16300, 16700, 20212, 20708, 25265, 25885, 27221, 50530, 51770, 54442, 101060, 103540, 108884, 126325, 129425, 136105, 252650, 258850, 272210, 505300, 517700, 544420, 680525, 843851, 1361050, 1687702, 2722100, 3375404, 4219255, 8438510, 16877020, 21096275, 42192550, 84385100]

約数ペア:

[(1, 84385100), (2, 42192550), (4, 21096275), (5, 16877020), (10, 8438510), (20, 4219255), (25, 3375404), (31, 2722100), (50, 1687702), (62, 1361050), (100, 843851), (124, 680525), (155, 544420), (163, 517700), (167, 505300), (310, 272210), (326, 258850), (334, 252650), (620, 136105), (652, 129425), (668, 126325), (775, 108884), (815, 103540), (835, 101060), (1550, 54442), (1630, 51770), (1670, 50530), (3100, 27221), (3260, 25885), (3340, 25265), (4075, 20708), (4175, 20212), (5053, 16700), (5177, 16300), (8150, 10354), (8350, 10106)]