19856940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{173}}^1\times {\mathrm{1913}}^1$

素因数の和:2098

約数の個数: 48

約数和(自身を含む): 55950048

約数和(自身を除く): 36093108

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 173, 346, 519, 692, 865, 1038, 1730, 1913, 2076, 2595, 3460, 3826, 5190, 5739, 7652, 9565, 10380, 11478, 19130, 22956, 28695, 38260, 57390, 114780, 330949, 661898, 992847, 1323796, 1654745, 1985694, 3309490, 3971388, 4964235, 6618980, 9928470, 19856940]

約数ペア:

[(1, 19856940), (2, 9928470), (3, 6618980), (4, 4964235), (5, 3971388), (6, 3309490), (10, 1985694), (12, 1654745), (15, 1323796), (20, 992847), (30, 661898), (60, 330949), (173, 114780), (346, 57390), (519, 38260), (692, 28695), (865, 22956), (1038, 19130), (1730, 11478), (1913, 10380), (2076, 9565), (2595, 7652), (3460, 5739), (3826, 5190)]