25679420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{283}}^1\times {\mathrm{349}}^1$

素因数の和:654

約数の個数: 48

約数和(自身を含む): 58447200

約数和(自身を除く): 32767780

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 283, 349, 566, 698, 1132, 1396, 1415, 1745, 2830, 3490, 3679, 4537, 5660, 6980, 7358, 9074, 14716, 18148, 18395, 22685, 36790, 45370, 73580, 90740, 98767, 197534, 395068, 493835, 987670, 1283971, 1975340, 2567942, 5135884, 6419855, 12839710, 25679420]

約数ペア:

[(1, 25679420), (2, 12839710), (4, 6419855), (5, 5135884), (10, 2567942), (13, 1975340), (20, 1283971), (26, 987670), (52, 493835), (65, 395068), (130, 197534), (260, 98767), (283, 90740), (349, 73580), (566, 45370), (698, 36790), (1132, 22685), (1396, 18395), (1415, 18148), (1745, 14716), (2830, 9074), (3490, 7358), (3679, 6980), (4537, 5660)]