38642020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{1277}}^1$

素因数の和:1392

約数の個数: 48

約数和(自身を含む): 86955120

約数和(自身を除く): 48313100

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 89, 170, 178, 340, 356, 445, 890, 1277, 1513, 1780, 2554, 3026, 5108, 6052, 6385, 7565, 12770, 15130, 21709, 25540, 30260, 43418, 86836, 108545, 113653, 217090, 227306, 434180, 454612, 568265, 1136530, 1932101, 2273060, 3864202, 7728404, 9660505, 19321010, 38642020]

約数ペア:

[(1, 38642020), (2, 19321010), (4, 9660505), (5, 7728404), (10, 3864202), (17, 2273060), (20, 1932101), (34, 1136530), (68, 568265), (85, 454612), (89, 434180), (170, 227306), (178, 217090), (340, 113653), (356, 108545), (445, 86836), (890, 43418), (1277, 30260), (1513, 25540), (1780, 21709), (2554, 15130), (3026, 12770), (5108, 7565), (6052, 6385)]