20501312

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{601}}^1$

素因数の和:667

約数の個数: 56

約数和(自身を含む): 44954952

約数和(自身を除く): 24453640

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 41, 52, 64, 82, 104, 164, 208, 328, 416, 533, 601, 656, 832, 1066, 1202, 1312, 2132, 2404, 2624, 4264, 4808, 7813, 8528, 9616, 15626, 17056, 19232, 24641, 31252, 34112, 38464, 49282, 62504, 98564, 125008, 197128, 250016, 320333, 394256, 500032, 640666, 788512, 1281332, 1577024, 2562664, 5125328, 10250656, 20501312]

約数ペア:

[(1, 20501312), (2, 10250656), (4, 5125328), (8, 2562664), (13, 1577024), (16, 1281332), (26, 788512), (32, 640666), (41, 500032), (52, 394256), (64, 320333), (82, 250016), (104, 197128), (164, 125008), (208, 98564), (328, 62504), (416, 49282), (533, 38464), (601, 34112), (656, 31252), (832, 24641), (1066, 19232), (1202, 17056), (1312, 15626), (2132, 9616), (2404, 8528), (2624, 7813), (4264, 4808)]