20804938380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{282599}}^1$

素因数の和:283023

約数の個数: 72

約数和(自身を含む): 63262836000

約数和(自身を除く): 42457897620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 409, 818, 1227, 1636, 2045, 2454, 3681, 4090, 4908, 6135, 7362, 8180, 12270, 14724, 18405, 24540, 36810, 73620, 282599, 565198, 847797, 1130396, 1412995, 1695594, 2543391, 2825990, 3391188, 4238985, 5086782, 5651980, 8477970, 10173564, 12716955, 16955940, 25433910, 50867820, 115582991, 231165982, 346748973, 462331964, 577914955, 693497946, 1040246919, 1155829910, 1386995892, 1733744865, 2080493838, 2311659820, 3467489730, 4160987676, 5201234595, 6934979460, 10402469190, 20804938380]

約数ペア:

[(1, 20804938380), (2, 10402469190), (3, 6934979460), (4, 5201234595), (5, 4160987676), (6, 3467489730), (9, 2311659820), (10, 2080493838), (12, 1733744865), (15, 1386995892), (18, 1155829910), (20, 1040246919), (30, 693497946), (36, 577914955), (45, 462331964), (60, 346748973), (90, 231165982), (180, 115582991), (409, 50867820), (818, 25433910), (1227, 16955940), (1636, 12716955), (2045, 10173564), (2454, 8477970), (3681, 5651980), (4090, 5086782), (4908, 4238985), (6135, 3391188), (7362, 2825990), (8180, 2543391), (12270, 1695594), (14724, 1412995), (18405, 1130396), (24540, 847797), (36810, 565198), (73620, 282599)]