2747440

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{563}}^1$

素因数の和:637

約数の個数: 40

約数和(自身を含む): 6504048

約数和(自身を除く): 3756608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 563, 610, 976, 1126, 1220, 2252, 2440, 2815, 4504, 4880, 5630, 9008, 11260, 22520, 34343, 45040, 68686, 137372, 171715, 274744, 343430, 549488, 686860, 1373720, 2747440]

約数ペア:

[(1, 2747440), (2, 1373720), (4, 686860), (5, 549488), (8, 343430), (10, 274744), (16, 171715), (20, 137372), (40, 68686), (61, 45040), (80, 34343), (122, 22520), (244, 11260), (305, 9008), (488, 5630), (563, 4880), (610, 4504), (976, 2815), (1126, 2440), (1220, 2252)]