289744520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{557201}}^1$

素因数の和:557225

約数の個数: 32

約数和(自身を含む): 702074520

約数和(自身を除く): 412330000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 557201, 1114402, 2228804, 2786005, 4457608, 5572010, 7243613, 11144020, 14487226, 22288040, 28974452, 36218065, 57948904, 72436130, 144872260, 289744520]

約数ペア:

[(1, 289744520), (2, 144872260), (4, 72436130), (5, 57948904), (8, 36218065), (10, 28974452), (13, 22288040), (20, 14487226), (26, 11144020), (40, 7243613), (52, 5572010), (65, 4457608), (104, 2786005), (130, 2228804), (260, 1114402), (520, 557201)]