7800260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1579}}^1$

素因数の和:1620

約数の個数: 48

約数和(自身を含む): 18580800

約数和(自身を除く): 10780540

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 1579, 2470, 3158, 4940, 6316, 7895, 15790, 20527, 30001, 31580, 41054, 60002, 82108, 102635, 120004, 150005, 205270, 300010, 390013, 410540, 600020, 780026, 1560052, 1950065, 3900130, 7800260]

約数ペア:

[(1, 7800260), (2, 3900130), (4, 1950065), (5, 1560052), (10, 780026), (13, 600020), (19, 410540), (20, 390013), (26, 300010), (38, 205270), (52, 150005), (65, 120004), (76, 102635), (95, 82108), (130, 60002), (190, 41054), (247, 31580), (260, 30001), (380, 20527), (494, 15790), (988, 7895), (1235, 6316), (1579, 4940), (2470, 3158)]