72285880

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{227}}^1\times {\mathrm{419}}^1$

素因数の和:676

約数の個数: 64

約数和(自身を含む): 172368000

約数和(自身を除く): 100082120

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 227, 380, 419, 454, 760, 838, 908, 1135, 1676, 1816, 2095, 2270, 3352, 4190, 4313, 4540, 7961, 8380, 8626, 9080, 15922, 16760, 17252, 21565, 31844, 34504, 39805, 43130, 63688, 79610, 86260, 95113, 159220, 172520, 190226, 318440, 380452, 475565, 760904, 951130, 1807147, 1902260, 3614294, 3804520, 7228588, 9035735, 14457176, 18071470, 36142940, 72285880]

約数ペア:

[(1, 72285880), (2, 36142940), (4, 18071470), (5, 14457176), (8, 9035735), (10, 7228588), (19, 3804520), (20, 3614294), (38, 1902260), (40, 1807147), (76, 951130), (95, 760904), (152, 475565), (190, 380452), (227, 318440), (380, 190226), (419, 172520), (454, 159220), (760, 95113), (838, 86260), (908, 79610), (1135, 63688), (1676, 43130), (1816, 39805), (2095, 34504), (2270, 31844), (3352, 21565), (4190, 17252), (4313, 16760), (4540, 15922), (7961, 9080), (8380, 8626)]