398200

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{181}}^1$

素因数の和:208

約数の個数: 48

約数和(自身を含む): 1015560

約数和(自身を除く): 617360

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 181, 200, 220, 275, 362, 440, 550, 724, 905, 1100, 1448, 1810, 1991, 2200, 3620, 3982, 4525, 7240, 7964, 9050, 9955, 15928, 18100, 19910, 36200, 39820, 49775, 79640, 99550, 199100, 398200]

約数ペア:

[(1, 398200), (2, 199100), (4, 99550), (5, 79640), (8, 49775), (10, 39820), (11, 36200), (20, 19910), (22, 18100), (25, 15928), (40, 9955), (44, 9050), (50, 7964), (55, 7240), (88, 4525), (100, 3982), (110, 3620), (181, 2200), (200, 1991), (220, 1810), (275, 1448), (362, 1100), (440, 905), (550, 724)]