1256052980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{690139}}^1$

素因数の和:690168

約数の個数: 48

約数和(自身を含む): 3246418560

約数和(自身を除く): 1990365580

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 690139, 1380278, 2760556, 3450695, 4830973, 6901390, 8971807, 9661946, 13802780, 17943614, 19323892, 24154865, 35887228, 44859035, 48309730, 62802649, 89718070, 96619460, 125605298, 179436140, 251210596, 314013245, 628026490, 1256052980]

約数ペア:

[(1, 1256052980), (2, 628026490), (4, 314013245), (5, 251210596), (7, 179436140), (10, 125605298), (13, 96619460), (14, 89718070), (20, 62802649), (26, 48309730), (28, 44859035), (35, 35887228), (52, 24154865), (65, 19323892), (70, 17943614), (91, 13802780), (130, 9661946), (140, 8971807), (182, 6901390), (260, 4830973), (364, 3450695), (455, 2760556), (910, 1380278), (1820, 690139)]