123613720

素因数分解:

$2^3\times 5^1\times {\mathrm{241}}^1\times {\mathrm{12823}}^1$

素因数の和:13075

約数の個数: 32

約数和(自身を含む): 279306720

約数和(自身を除く): 155693000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 241, 482, 964, 1205, 1928, 2410, 4820, 9640, 12823, 25646, 51292, 64115, 102584, 128230, 256460, 512920, 3090343, 6180686, 12361372, 15451715, 24722744, 30903430, 61806860, 123613720]

約数ペア:

[(1, 123613720), (2, 61806860), (4, 30903430), (5, 24722744), (8, 15451715), (10, 12361372), (20, 6180686), (40, 3090343), (241, 512920), (482, 256460), (964, 128230), (1205, 102584), (1928, 64115), (2410, 51292), (4820, 25646), (9640, 12823)]