2721020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{151}}^1$

素因数の和:230

約数の個数: 48

約数和(自身を含む): 6205248

約数和(自身を除く): 3484228

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 53, 68, 85, 106, 151, 170, 212, 265, 302, 340, 530, 604, 755, 901, 1060, 1510, 1802, 2567, 3020, 3604, 4505, 5134, 8003, 9010, 10268, 12835, 16006, 18020, 25670, 32012, 40015, 51340, 80030, 136051, 160060, 272102, 544204, 680255, 1360510, 2721020]

約数ペア:

[(1, 2721020), (2, 1360510), (4, 680255), (5, 544204), (10, 272102), (17, 160060), (20, 136051), (34, 80030), (53, 51340), (68, 40015), (85, 32012), (106, 25670), (151, 18020), (170, 16006), (212, 12835), (265, 10268), (302, 9010), (340, 8003), (530, 5134), (604, 4505), (755, 3604), (901, 3020), (1060, 2567), (1510, 1802)]