19490250

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{1999}}^1$

素因数の和:2032

約数の個数: 64

約数和(自身を含む): 52416000

約数和(自身を除く): 32925750

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 65, 75, 78, 125, 130, 150, 195, 250, 325, 375, 390, 650, 750, 975, 1625, 1950, 1999, 3250, 3998, 4875, 5997, 9750, 9995, 11994, 19990, 25987, 29985, 49975, 51974, 59970, 77961, 99950, 129935, 149925, 155922, 249875, 259870, 299850, 389805, 499750, 649675, 749625, 779610, 1299350, 1499250, 1949025, 3248375, 3898050, 6496750, 9745125, 19490250]

約数ペア:

[(1, 19490250), (2, 9745125), (3, 6496750), (5, 3898050), (6, 3248375), (10, 1949025), (13, 1499250), (15, 1299350), (25, 779610), (26, 749625), (30, 649675), (39, 499750), (50, 389805), (65, 299850), (75, 259870), (78, 249875), (125, 155922), (130, 149925), (150, 129935), (195, 99950), (250, 77961), (325, 59970), (375, 51974), (390, 49975), (650, 29985), (750, 25987), (975, 19990), (1625, 11994), (1950, 9995), (1999, 9750), (3250, 5997), (3998, 4875)]