18835850

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1489}}^1$

素因数の和:1535

約数の個数: 48

約数和(自身を含む): 39908160

約数和(自身を除く): 21072310

約数列:

[1, 2, 5, 10, 11, 22, 23, 25, 46, 50, 55, 110, 115, 230, 253, 275, 506, 550, 575, 1150, 1265, 1489, 2530, 2978, 6325, 7445, 12650, 14890, 16379, 32758, 34247, 37225, 68494, 74450, 81895, 163790, 171235, 342470, 376717, 409475, 753434, 818950, 856175, 1712350, 1883585, 3767170, 9417925, 18835850]

約数ペア:

[(1, 18835850), (2, 9417925), (5, 3767170), (10, 1883585), (11, 1712350), (22, 856175), (23, 818950), (25, 753434), (46, 409475), (50, 376717), (55, 342470), (110, 171235), (115, 163790), (230, 81895), (253, 74450), (275, 68494), (506, 37225), (550, 34247), (575, 32758), (1150, 16379), (1265, 14890), (1489, 12650), (2530, 7445), (2978, 6325)]