280724841

素因数分解:

$3^2\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1$

素因数の和:306

約数の個数: 48

約数和(自身を含む): 427714560

約数和(自身を除く): 146989719

約数列:

[1, 3, 9, 67, 71, 79, 83, 201, 213, 237, 249, 603, 639, 711, 747, 4757, 5293, 5561, 5609, 5893, 6557, 14271, 15879, 16683, 16827, 17679, 19671, 42813, 47637, 50049, 50481, 53037, 59013, 375803, 394831, 439319, 465547, 1127409, 1184493, 1317957, 1396641, 3382227, 3553479, 3953871, 4189923, 31191649, 93574947, 280724841]

約数ペア:

[(1, 280724841), (3, 93574947), (9, 31191649), (67, 4189923), (71, 3953871), (79, 3553479), (83, 3382227), (201, 1396641), (213, 1317957), (237, 1184493), (249, 1127409), (603, 465547), (639, 439319), (711, 394831), (747, 375803), (4757, 59013), (5293, 53037), (5561, 50481), (5609, 50049), (5893, 47637), (6557, 42813), (14271, 19671), (15879, 17679), (16683, 16827)]