998491400

素因数分解:

$2^3\times 5^2\times {\mathrm{31}}^1\times {\mathrm{161047}}^1$

素因数の和:161094

約数の個数: 48

約数和(自身を含む): 2396394240

約数和(自身を除く): 1397902840

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 62, 100, 124, 155, 200, 248, 310, 620, 775, 1240, 1550, 3100, 6200, 161047, 322094, 644188, 805235, 1288376, 1610470, 3220940, 4026175, 4992457, 6441880, 8052350, 9984914, 16104700, 19969828, 24962285, 32209400, 39939656, 49924570, 99849140, 124811425, 199698280, 249622850, 499245700, 998491400]

約数ペア:

[(1, 998491400), (2, 499245700), (4, 249622850), (5, 199698280), (8, 124811425), (10, 99849140), (20, 49924570), (25, 39939656), (31, 32209400), (40, 24962285), (50, 19969828), (62, 16104700), (100, 9984914), (124, 8052350), (155, 6441880), (200, 4992457), (248, 4026175), (310, 3220940), (620, 1610470), (775, 1288376), (1240, 805235), (1550, 644188), (3100, 322094), (6200, 161047)]