1397720

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{421}}^1$

素因数の和:515

約数の個数: 32

約数和(自身を含む): 3190320

約数和(自身を除く): 1792600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 415, 421, 664, 830, 842, 1660, 1684, 2105, 3320, 3368, 4210, 8420, 16840, 34943, 69886, 139772, 174715, 279544, 349430, 698860, 1397720]

約数ペア:

[(1, 1397720), (2, 698860), (4, 349430), (5, 279544), (8, 174715), (10, 139772), (20, 69886), (40, 34943), (83, 16840), (166, 8420), (332, 4210), (415, 3368), (421, 3320), (664, 2105), (830, 1684), (842, 1660)]