655340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1$

素因数の和:198

約数の個数: 48

約数和(自身を含む): 1634304

約数和(自身を除く): 978964

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 151, 155, 217, 302, 310, 434, 604, 620, 755, 868, 1057, 1085, 1510, 2114, 2170, 3020, 4228, 4340, 4681, 5285, 9362, 10570, 18724, 21140, 23405, 32767, 46810, 65534, 93620, 131068, 163835, 327670, 655340]

約数ペア:

[(1, 655340), (2, 327670), (4, 163835), (5, 131068), (7, 93620), (10, 65534), (14, 46810), (20, 32767), (28, 23405), (31, 21140), (35, 18724), (62, 10570), (70, 9362), (124, 5285), (140, 4681), (151, 4340), (155, 4228), (217, 3020), (302, 2170), (310, 2114), (434, 1510), (604, 1085), (620, 1057), (755, 868)]