21568300

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{353}}^1$

素因数の和:427

約数の個数: 72

約数和(自身を含む): 51621696

約数和(自身を除く): 30053396

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 47, 50, 52, 65, 94, 100, 130, 188, 235, 260, 325, 353, 470, 611, 650, 706, 940, 1175, 1222, 1300, 1412, 1765, 2350, 2444, 3055, 3530, 4589, 4700, 6110, 7060, 8825, 9178, 12220, 15275, 16591, 17650, 18356, 22945, 30550, 33182, 35300, 45890, 61100, 66364, 82955, 91780, 114725, 165910, 215683, 229450, 331820, 414775, 431366, 458900, 829550, 862732, 1078415, 1659100, 2156830, 4313660, 5392075, 10784150, 21568300]

約数ペア:

[(1, 21568300), (2, 10784150), (4, 5392075), (5, 4313660), (10, 2156830), (13, 1659100), (20, 1078415), (25, 862732), (26, 829550), (47, 458900), (50, 431366), (52, 414775), (65, 331820), (94, 229450), (100, 215683), (130, 165910), (188, 114725), (235, 91780), (260, 82955), (325, 66364), (353, 61100), (470, 45890), (611, 35300), (650, 33182), (706, 30550), (940, 22945), (1175, 18356), (1222, 17650), (1300, 16591), (1412, 15275), (1765, 12220), (2350, 9178), (2444, 8825), (3055, 7060), (3530, 6110), (4589, 4700)]