809388640

素因数分解:

$2^5\times 5^1\times {\mathrm{71}}^1\times {\mathrm{71249}}^1$

素因数の和:71335

約数の個数: 48

約数和(自身を含む): 1939140000

約数和(自身を除く): 1129751360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 71, 80, 142, 160, 284, 355, 568, 710, 1136, 1420, 2272, 2840, 5680, 11360, 71249, 142498, 284996, 356245, 569992, 712490, 1139984, 1424980, 2279968, 2849960, 5058679, 5699920, 10117358, 11399840, 20234716, 25293395, 40469432, 50586790, 80938864, 101173580, 161877728, 202347160, 404694320, 809388640]

約数ペア:

[(1, 809388640), (2, 404694320), (4, 202347160), (5, 161877728), (8, 101173580), (10, 80938864), (16, 50586790), (20, 40469432), (32, 25293395), (40, 20234716), (71, 11399840), (80, 10117358), (142, 5699920), (160, 5058679), (284, 2849960), (355, 2279968), (568, 1424980), (710, 1139984), (1136, 712490), (1420, 569992), (2272, 356245), (2840, 284996), (5680, 142498), (11360, 71249)]