319560400

素因数分解:

$2^4\times 5^2\times {\mathrm{31}}^1\times {\mathrm{25771}}^1$

素因数の和:25820

約数の個数: 60

約数和(自身を含む): 792540544

約数和(自身を除く): 472980144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 62, 80, 100, 124, 155, 200, 248, 310, 400, 496, 620, 775, 1240, 1550, 2480, 3100, 6200, 12400, 25771, 51542, 103084, 128855, 206168, 257710, 412336, 515420, 644275, 798901, 1030840, 1288550, 1597802, 2061680, 2577100, 3195604, 3994505, 5154200, 6391208, 7989010, 10308400, 12782416, 15978020, 19972525, 31956040, 39945050, 63912080, 79890100, 159780200, 319560400]

約数ペア:

[(1, 319560400), (2, 159780200), (4, 79890100), (5, 63912080), (8, 39945050), (10, 31956040), (16, 19972525), (20, 15978020), (25, 12782416), (31, 10308400), (40, 7989010), (50, 6391208), (62, 5154200), (80, 3994505), (100, 3195604), (124, 2577100), (155, 2061680), (200, 1597802), (248, 1288550), (310, 1030840), (400, 798901), (496, 644275), (620, 515420), (775, 412336), (1240, 257710), (1550, 206168), (2480, 128855), (3100, 103084), (6200, 51542), (12400, 25771)]