28265510

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{349}}^1$

素因数の和:465

約数の個数: 64

約数和(自身を含む): 63504000

約数和(自身を除く): 35238490

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 89, 91, 130, 178, 182, 349, 445, 455, 623, 698, 890, 910, 1157, 1246, 1745, 2314, 2443, 3115, 3490, 4537, 4886, 5785, 6230, 8099, 9074, 11570, 12215, 16198, 22685, 24430, 31061, 31759, 40495, 45370, 62122, 63518, 80990, 155305, 158795, 217427, 310610, 317590, 403793, 434854, 807586, 1087135, 2018965, 2174270, 2826551, 4037930, 5653102, 14132755, 28265510]

約数ペア:

[(1, 28265510), (2, 14132755), (5, 5653102), (7, 4037930), (10, 2826551), (13, 2174270), (14, 2018965), (26, 1087135), (35, 807586), (65, 434854), (70, 403793), (89, 317590), (91, 310610), (130, 217427), (178, 158795), (182, 155305), (349, 80990), (445, 63518), (455, 62122), (623, 45370), (698, 40495), (890, 31759), (910, 31061), (1157, 24430), (1246, 22685), (1745, 16198), (2314, 12215), (2443, 11570), (3115, 9074), (3490, 8099), (4537, 6230), (4886, 5785)]