20195460

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{251}}^1$

素因数の和:418

約数の個数: 96

約数和(自身を含む): 63504000

約数和(自身を除く): 43308540

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 149, 180, 251, 270, 298, 447, 502, 540, 596, 745, 753, 894, 1004, 1255, 1341, 1490, 1506, 1788, 2235, 2259, 2510, 2682, 2980, 3012, 3765, 4023, 4470, 4518, 5020, 5364, 6705, 6777, 7530, 8046, 8940, 9036, 11295, 13410, 13554, 15060, 16092, 20115, 22590, 26820, 27108, 33885, 37399, 40230, 45180, 67770, 74798, 80460, 112197, 135540, 149596, 186995, 224394, 336591, 373990, 448788, 560985, 673182, 747980, 1009773, 1121970, 1346364, 1682955, 2019546, 2243940, 3365910, 4039092, 5048865, 6731820, 10097730, 20195460]

約数ペア:

[(1, 20195460), (2, 10097730), (3, 6731820), (4, 5048865), (5, 4039092), (6, 3365910), (9, 2243940), (10, 2019546), (12, 1682955), (15, 1346364), (18, 1121970), (20, 1009773), (27, 747980), (30, 673182), (36, 560985), (45, 448788), (54, 373990), (60, 336591), (90, 224394), (108, 186995), (135, 149596), (149, 135540), (180, 112197), (251, 80460), (270, 74798), (298, 67770), (447, 45180), (502, 40230), (540, 37399), (596, 33885), (745, 27108), (753, 26820), (894, 22590), (1004, 20115), (1255, 16092), (1341, 15060), (1490, 13554), (1506, 13410), (1788, 11295), (2235, 9036), (2259, 8940), (2510, 8046), (2682, 7530), (2980, 6777), (3012, 6705), (3765, 5364), (4023, 5020), (4470, 4518)]