450340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1$

素因数の和:132

約数の個数: 48

約数和(自身を含む): 1088640

約数和(自身を除く): 638300

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 89, 92, 110, 115, 178, 220, 230, 253, 356, 445, 460, 506, 890, 979, 1012, 1265, 1780, 1958, 2047, 2530, 3916, 4094, 4895, 5060, 8188, 9790, 10235, 19580, 20470, 22517, 40940, 45034, 90068, 112585, 225170, 450340]

約数ペア:

[(1, 450340), (2, 225170), (4, 112585), (5, 90068), (10, 45034), (11, 40940), (20, 22517), (22, 20470), (23, 19580), (44, 10235), (46, 9790), (55, 8188), (89, 5060), (92, 4895), (110, 4094), (115, 3916), (178, 2530), (220, 2047), (230, 1958), (253, 1780), (356, 1265), (445, 1012), (460, 979), (506, 890)]