20500935

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{653}}^1$

素因数の和:704

約数の個数: 64

約数和(自身を含む): 42190848

約数和(自身を除く): 21689913

約数列:

[1, 3, 5, 7, 13, 15, 21, 23, 35, 39, 65, 69, 91, 105, 115, 161, 195, 273, 299, 345, 455, 483, 653, 805, 897, 1365, 1495, 1959, 2093, 2415, 3265, 4485, 4571, 6279, 8489, 9795, 10465, 13713, 15019, 22855, 25467, 31395, 42445, 45057, 59423, 68565, 75095, 105133, 127335, 178269, 195247, 225285, 297115, 315399, 525665, 585741, 891345, 976235, 1366729, 1576995, 2928705, 4100187, 6833645, 20500935]

約数ペア:

[(1, 20500935), (3, 6833645), (5, 4100187), (7, 2928705), (13, 1576995), (15, 1366729), (21, 976235), (23, 891345), (35, 585741), (39, 525665), (65, 315399), (69, 297115), (91, 225285), (105, 195247), (115, 178269), (161, 127335), (195, 105133), (273, 75095), (299, 68565), (345, 59423), (455, 45057), (483, 42445), (653, 31395), (805, 25467), (897, 22855), (1365, 15019), (1495, 13713), (1959, 10465), (2093, 9795), (2415, 8489), (3265, 6279), (4485, 4571)]