12657340

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{157}}^1$

素因数の和:334

約数の個数: 48

約数和(自身を含む): 27871200

約数和(自身を除く): 15213860

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 139, 145, 157, 278, 290, 314, 556, 580, 628, 695, 785, 1390, 1570, 2780, 3140, 4031, 4553, 8062, 9106, 16124, 18212, 20155, 21823, 22765, 40310, 43646, 45530, 80620, 87292, 91060, 109115, 218230, 436460, 632867, 1265734, 2531468, 3164335, 6328670, 12657340]

約数ペア:

[(1, 12657340), (2, 6328670), (4, 3164335), (5, 2531468), (10, 1265734), (20, 632867), (29, 436460), (58, 218230), (116, 109115), (139, 91060), (145, 87292), (157, 80620), (278, 45530), (290, 43646), (314, 40310), (556, 22765), (580, 21823), (628, 20155), (695, 18212), (785, 16124), (1390, 9106), (1570, 8062), (2780, 4553), (3140, 4031)]