21253600

素因数分解:

$2^5\times 5^2\times {\mathrm{31}}^1\times {\mathrm{857}}^1$

素因数の和:908

約数の個数: 72

約数和(自身を含む): 53621568

約数和(自身を除く): 32367968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 80, 100, 124, 155, 160, 200, 248, 310, 400, 496, 620, 775, 800, 857, 992, 1240, 1550, 1714, 2480, 3100, 3428, 4285, 4960, 6200, 6856, 8570, 12400, 13712, 17140, 21425, 24800, 26567, 27424, 34280, 42850, 53134, 68560, 85700, 106268, 132835, 137120, 171400, 212536, 265670, 342800, 425072, 531340, 664175, 685600, 850144, 1062680, 1328350, 2125360, 2656700, 4250720, 5313400, 10626800, 21253600]

約数ペア:

[(1, 21253600), (2, 10626800), (4, 5313400), (5, 4250720), (8, 2656700), (10, 2125360), (16, 1328350), (20, 1062680), (25, 850144), (31, 685600), (32, 664175), (40, 531340), (50, 425072), (62, 342800), (80, 265670), (100, 212536), (124, 171400), (155, 137120), (160, 132835), (200, 106268), (248, 85700), (310, 68560), (400, 53134), (496, 42850), (620, 34280), (775, 27424), (800, 26567), (857, 24800), (992, 21425), (1240, 17140), (1550, 13712), (1714, 12400), (2480, 8570), (3100, 6856), (3428, 6200), (4285, 4960)]