7920500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1$

素因数の和:130

約数の個数: 96

約数和(自身を含む): 20686848

約数和(自身を除く): 12766348

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 31, 35, 50, 62, 70, 73, 100, 124, 125, 140, 146, 155, 175, 217, 250, 292, 310, 350, 365, 434, 500, 511, 620, 700, 730, 775, 868, 875, 1022, 1085, 1460, 1550, 1750, 1825, 2044, 2170, 2263, 2555, 3100, 3500, 3650, 3875, 4340, 4526, 5110, 5425, 7300, 7750, 9052, 9125, 10220, 10850, 11315, 12775, 15500, 15841, 18250, 21700, 22630, 25550, 27125, 31682, 36500, 45260, 51100, 54250, 56575, 63364, 63875, 79205, 108500, 113150, 127750, 158410, 226300, 255500, 282875, 316820, 396025, 565750, 792050, 1131500, 1584100, 1980125, 3960250, 7920500]

約数ペア:

[(1, 7920500), (2, 3960250), (4, 1980125), (5, 1584100), (7, 1131500), (10, 792050), (14, 565750), (20, 396025), (25, 316820), (28, 282875), (31, 255500), (35, 226300), (50, 158410), (62, 127750), (70, 113150), (73, 108500), (100, 79205), (124, 63875), (125, 63364), (140, 56575), (146, 54250), (155, 51100), (175, 45260), (217, 36500), (250, 31682), (292, 27125), (310, 25550), (350, 22630), (365, 21700), (434, 18250), (500, 15841), (511, 15500), (620, 12775), (700, 11315), (730, 10850), (775, 10220), (868, 9125), (875, 9052), (1022, 7750), (1085, 7300), (1460, 5425), (1550, 5110), (1750, 4526), (1825, 4340), (2044, 3875), (2170, 3650), (2263, 3500), (2555, 3100)]