128898340

素因数分解:

$2^2\times 5^1\times {\mathrm{1039}}^1\times {\mathrm{6203}}^1$

素因数の和:7251

約数の個数: 24

約数和(自身を含む): 270990720

約数和(自身を除く): 142092380

約数列:

[1, 2, 4, 5, 10, 20, 1039, 2078, 4156, 5195, 6203, 10390, 12406, 20780, 24812, 31015, 62030, 124060, 6444917, 12889834, 25779668, 32224585, 64449170, 128898340]

約数ペア:

[(1, 128898340), (2, 64449170), (4, 32224585), (5, 25779668), (10, 12889834), (20, 6444917), (1039, 124060), (2078, 62030), (4156, 31015), (5195, 24812), (6203, 20780), (10390, 12406)]