5140400

素因数分解:

$2^4\times 5^2\times {\mathrm{71}}^1\times {\mathrm{181}}^1$

素因数の和:270

約数の個数: 60

約数和(自身を含む): 12592944

約数和(自身を除く): 7452544

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 71, 80, 100, 142, 181, 200, 284, 355, 362, 400, 568, 710, 724, 905, 1136, 1420, 1448, 1775, 1810, 2840, 2896, 3550, 3620, 4525, 5680, 7100, 7240, 9050, 12851, 14200, 14480, 18100, 25702, 28400, 36200, 51404, 64255, 72400, 102808, 128510, 205616, 257020, 321275, 514040, 642550, 1028080, 1285100, 2570200, 5140400]

約数ペア:

[(1, 5140400), (2, 2570200), (4, 1285100), (5, 1028080), (8, 642550), (10, 514040), (16, 321275), (20, 257020), (25, 205616), (40, 128510), (50, 102808), (71, 72400), (80, 64255), (100, 51404), (142, 36200), (181, 28400), (200, 25702), (284, 18100), (355, 14480), (362, 14200), (400, 12851), (568, 9050), (710, 7240), (724, 7100), (905, 5680), (1136, 4525), (1420, 3620), (1448, 3550), (1775, 2896), (1810, 2840)]