68420720

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{587}}^1$

素因数の和:678

約数の個数: 80

約数和(自身を含む): 167989248

約数和(自身を除く): 99568528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 47, 62, 80, 94, 124, 155, 188, 235, 248, 310, 376, 470, 496, 587, 620, 752, 940, 1174, 1240, 1457, 1880, 2348, 2480, 2914, 2935, 3760, 4696, 5828, 5870, 7285, 9392, 11656, 11740, 14570, 18197, 23312, 23480, 27589, 29140, 36394, 46960, 55178, 58280, 72788, 90985, 110356, 116560, 137945, 145576, 181970, 220712, 275890, 291152, 363940, 441424, 551780, 727880, 855259, 1103560, 1455760, 1710518, 2207120, 3421036, 4276295, 6842072, 8552590, 13684144, 17105180, 34210360, 68420720]

約数ペア:

[(1, 68420720), (2, 34210360), (4, 17105180), (5, 13684144), (8, 8552590), (10, 6842072), (16, 4276295), (20, 3421036), (31, 2207120), (40, 1710518), (47, 1455760), (62, 1103560), (80, 855259), (94, 727880), (124, 551780), (155, 441424), (188, 363940), (235, 291152), (248, 275890), (310, 220712), (376, 181970), (470, 145576), (496, 137945), (587, 116560), (620, 110356), (752, 90985), (940, 72788), (1174, 58280), (1240, 55178), (1457, 46960), (1880, 36394), (2348, 29140), (2480, 27589), (2914, 23480), (2935, 23312), (3760, 18197), (4696, 14570), (5828, 11740), (5870, 11656), (7285, 9392)]