19969650

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{199}}^1\times {\mathrm{223}}^1$

素因数の和:440

約数の個数: 72

約数和(自身を含む): 54163200

約数和(自身を除く): 34193550

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 75, 90, 150, 199, 223, 225, 398, 446, 450, 597, 669, 995, 1115, 1194, 1338, 1791, 1990, 2007, 2230, 2985, 3345, 3582, 4014, 4975, 5575, 5970, 6690, 8955, 9950, 10035, 11150, 14925, 16725, 17910, 20070, 29850, 33450, 44377, 44775, 50175, 88754, 89550, 100350, 133131, 221885, 266262, 399393, 443770, 665655, 798786, 1109425, 1331310, 1996965, 2218850, 3328275, 3993930, 6656550, 9984825, 19969650]

約数ペア:

[(1, 19969650), (2, 9984825), (3, 6656550), (5, 3993930), (6, 3328275), (9, 2218850), (10, 1996965), (15, 1331310), (18, 1109425), (25, 798786), (30, 665655), (45, 443770), (50, 399393), (75, 266262), (90, 221885), (150, 133131), (199, 100350), (223, 89550), (225, 88754), (398, 50175), (446, 44775), (450, 44377), (597, 33450), (669, 29850), (995, 20070), (1115, 17910), (1194, 16725), (1338, 14925), (1791, 11150), (1990, 10035), (2007, 9950), (2230, 8955), (2985, 6690), (3345, 5970), (3582, 5575), (4014, 4975)]