20503860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{271}}^1$

素因数の和:393

約数の個数: 96

約数和(自身を含む): 62694912

約数和(自身を除く): 42191052

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 97, 130, 156, 194, 195, 260, 271, 291, 388, 390, 485, 542, 582, 780, 813, 970, 1084, 1164, 1261, 1355, 1455, 1626, 1940, 2522, 2710, 2910, 3252, 3523, 3783, 4065, 5044, 5420, 5820, 6305, 7046, 7566, 8130, 10569, 12610, 14092, 15132, 16260, 17615, 18915, 21138, 25220, 26287, 35230, 37830, 42276, 52574, 52845, 70460, 75660, 78861, 105148, 105690, 131435, 157722, 211380, 262870, 315444, 341731, 394305, 525740, 683462, 788610, 1025193, 1366924, 1577220, 1708655, 2050386, 3417310, 4100772, 5125965, 6834620, 10251930, 20503860]

約数ペア:

[(1, 20503860), (2, 10251930), (3, 6834620), (4, 5125965), (5, 4100772), (6, 3417310), (10, 2050386), (12, 1708655), (13, 1577220), (15, 1366924), (20, 1025193), (26, 788610), (30, 683462), (39, 525740), (52, 394305), (60, 341731), (65, 315444), (78, 262870), (97, 211380), (130, 157722), (156, 131435), (194, 105690), (195, 105148), (260, 78861), (271, 75660), (291, 70460), (388, 52845), (390, 52574), (485, 42276), (542, 37830), (582, 35230), (780, 26287), (813, 25220), (970, 21138), (1084, 18915), (1164, 17615), (1261, 16260), (1355, 15132), (1455, 14092), (1626, 12610), (1940, 10569), (2522, 8130), (2710, 7566), (2910, 7046), (3252, 6305), (3523, 5820), (3783, 5420), (4065, 5044)]