209712400

素因数分解:

$2^4\times 5^2\times {\mathrm{269}}^1\times {\mathrm{1949}}^1$

素因数の和:2236

約数の個数: 60

約数和(自身を含む): 505966500

約数和(自身を除く): 296254100

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 269, 400, 538, 1076, 1345, 1949, 2152, 2690, 3898, 4304, 5380, 6725, 7796, 9745, 10760, 13450, 15592, 19490, 21520, 26900, 31184, 38980, 48725, 53800, 77960, 97450, 107600, 155920, 194900, 389800, 524281, 779600, 1048562, 2097124, 2621405, 4194248, 5242810, 8388496, 10485620, 13107025, 20971240, 26214050, 41942480, 52428100, 104856200, 209712400]

約数ペア:

[(1, 209712400), (2, 104856200), (4, 52428100), (5, 41942480), (8, 26214050), (10, 20971240), (16, 13107025), (20, 10485620), (25, 8388496), (40, 5242810), (50, 4194248), (80, 2621405), (100, 2097124), (200, 1048562), (269, 779600), (400, 524281), (538, 389800), (1076, 194900), (1345, 155920), (1949, 107600), (2152, 97450), (2690, 77960), (3898, 53800), (4304, 48725), (5380, 38980), (6725, 31184), (7796, 26900), (9745, 21520), (10760, 19490), (13450, 15592)]