72917240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{165721}}^1$

素因数の和:165743

約数の個数: 32

約数和(自身を含む): 178979760

約数和(自身を除く): 106062520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 165721, 331442, 662884, 828605, 1325768, 1657210, 1822931, 3314420, 3645862, 6628840, 7291724, 9114655, 14583448, 18229310, 36458620, 72917240]

約数ペア:

[(1, 72917240), (2, 36458620), (4, 18229310), (5, 14583448), (8, 9114655), (10, 7291724), (11, 6628840), (20, 3645862), (22, 3314420), (40, 1822931), (44, 1657210), (55, 1325768), (88, 828605), (110, 662884), (220, 331442), (440, 165721)]