20409870

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{887}}^1$

素因数の和:969

約数の個数: 64

約数和(自身を含む): 53706240

約数和(自身を除く): 33296370

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 59, 65, 78, 118, 130, 177, 195, 295, 354, 390, 590, 767, 885, 887, 1534, 1770, 1774, 2301, 2661, 3835, 4435, 4602, 5322, 7670, 8870, 11505, 11531, 13305, 23010, 23062, 26610, 34593, 52333, 57655, 69186, 104666, 115310, 156999, 172965, 261665, 313998, 345930, 523330, 680329, 784995, 1360658, 1569990, 2040987, 3401645, 4081974, 6803290, 10204935, 20409870]

約数ペア:

[(1, 20409870), (2, 10204935), (3, 6803290), (5, 4081974), (6, 3401645), (10, 2040987), (13, 1569990), (15, 1360658), (26, 784995), (30, 680329), (39, 523330), (59, 345930), (65, 313998), (78, 261665), (118, 172965), (130, 156999), (177, 115310), (195, 104666), (295, 69186), (354, 57655), (390, 52333), (590, 34593), (767, 26610), (885, 23062), (887, 23010), (1534, 13305), (1770, 11531), (1774, 11505), (2301, 8870), (2661, 7670), (3835, 5322), (4435, 4602)]