19390020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{24859}}^1$

素因数の和:24884

約数の個数: 48

約数和(自身を含む): 58470720

約数和(自身を除く): 39080700

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 24859, 49718, 74577, 99436, 124295, 149154, 248590, 298308, 323167, 372885, 497180, 646334, 745770, 969501, 1292668, 1491540, 1615835, 1939002, 3231670, 3878004, 4847505, 6463340, 9695010, 19390020]

約数ペア:

[(1, 19390020), (2, 9695010), (3, 6463340), (4, 4847505), (5, 3878004), (6, 3231670), (10, 1939002), (12, 1615835), (13, 1491540), (15, 1292668), (20, 969501), (26, 745770), (30, 646334), (39, 497180), (52, 372885), (60, 323167), (65, 298308), (78, 248590), (130, 149154), (156, 124295), (195, 99436), (260, 74577), (390, 49718), (780, 24859)]