81463120

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{19213}}^1$

素因数の和:19279

約数の個数: 40

約数和(自身を含む): 192985416

約数和(自身を除く): 111522296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120, 4240, 19213, 38426, 76852, 96065, 153704, 192130, 307408, 384260, 768520, 1018289, 1537040, 2036578, 4073156, 5091445, 8146312, 10182890, 16292624, 20365780, 40731560, 81463120]

約数ペア:

[(1, 81463120), (2, 40731560), (4, 20365780), (5, 16292624), (8, 10182890), (10, 8146312), (16, 5091445), (20, 4073156), (40, 2036578), (53, 1537040), (80, 1018289), (106, 768520), (212, 384260), (265, 307408), (424, 192130), (530, 153704), (848, 96065), (1060, 76852), (2120, 38426), (4240, 19213)]