39912500

素因数分解:

$2^2\times 5^5\times {\mathrm{31}}^1\times {\mathrm{103}}^1$

素因数の和:163

約数の個数: 72

約数和(自身を含む): 90994176

約数和(自身を除く): 51081676

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 103, 124, 125, 155, 206, 250, 310, 412, 500, 515, 620, 625, 775, 1030, 1250, 1550, 2060, 2500, 2575, 3100, 3125, 3193, 3875, 5150, 6250, 6386, 7750, 10300, 12500, 12772, 12875, 15500, 15965, 19375, 25750, 31930, 38750, 51500, 63860, 64375, 77500, 79825, 96875, 128750, 159650, 193750, 257500, 319300, 321875, 387500, 399125, 643750, 798250, 1287500, 1596500, 1995625, 3991250, 7982500, 9978125, 19956250, 39912500]

約数ペア:

[(1, 39912500), (2, 19956250), (4, 9978125), (5, 7982500), (10, 3991250), (20, 1995625), (25, 1596500), (31, 1287500), (50, 798250), (62, 643750), (100, 399125), (103, 387500), (124, 321875), (125, 319300), (155, 257500), (206, 193750), (250, 159650), (310, 128750), (412, 96875), (500, 79825), (515, 77500), (620, 64375), (625, 63860), (775, 51500), (1030, 38750), (1250, 31930), (1550, 25750), (2060, 19375), (2500, 15965), (2575, 15500), (3100, 12875), (3125, 12772), (3193, 12500), (3875, 10300), (5150, 7750), (6250, 6386)]