38905740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{331}}^1\times {\mathrm{653}}^1$

素因数の和:999

約数の個数: 72

約数和(自身を含む): 118551888

約数和(自身を除く): 79646148

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 331, 653, 662, 993, 1306, 1324, 1655, 1959, 1986, 2612, 2979, 3265, 3310, 3918, 3972, 4965, 5877, 5958, 6530, 6620, 7836, 9795, 9930, 11754, 11916, 13060, 14895, 19590, 19860, 23508, 29385, 29790, 39180, 58770, 59580, 117540, 216143, 432286, 648429, 864572, 1080715, 1296858, 1945287, 2161430, 2593716, 3242145, 3890574, 4322860, 6484290, 7781148, 9726435, 12968580, 19452870, 38905740]

約数ペア:

[(1, 38905740), (2, 19452870), (3, 12968580), (4, 9726435), (5, 7781148), (6, 6484290), (9, 4322860), (10, 3890574), (12, 3242145), (15, 2593716), (18, 2161430), (20, 1945287), (30, 1296858), (36, 1080715), (45, 864572), (60, 648429), (90, 432286), (180, 216143), (331, 117540), (653, 59580), (662, 58770), (993, 39180), (1306, 29790), (1324, 29385), (1655, 23508), (1959, 19860), (1986, 19590), (2612, 14895), (2979, 13060), (3265, 11916), (3310, 11754), (3918, 9930), (3972, 9795), (4965, 7836), (5877, 6620), (5958, 6530)]