19878256

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{2843}}^1$

素因数の和:2893

約数の個数: 40

約数和(自身を含む): 42318720

約数和(自身を除く): 22440464

約数列:

[1, 2, 4, 8, 16, 19, 23, 38, 46, 76, 92, 152, 184, 304, 368, 437, 874, 1748, 2843, 3496, 5686, 6992, 11372, 22744, 45488, 54017, 65389, 108034, 130778, 216068, 261556, 432136, 523112, 864272, 1046224, 1242391, 2484782, 4969564, 9939128, 19878256]

約数ペア:

[(1, 19878256), (2, 9939128), (4, 4969564), (8, 2484782), (16, 1242391), (19, 1046224), (23, 864272), (38, 523112), (46, 432136), (76, 261556), (92, 216068), (152, 130778), (184, 108034), (304, 65389), (368, 54017), (437, 45488), (874, 22744), (1748, 11372), (2843, 6992), (3496, 5686)]