202921720

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{61121}}^1$

素因数の和:61215

約数の個数: 32

約数和(自身を含む): 462082320

約数和(自身を除く): 259160600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 415, 664, 830, 1660, 3320, 61121, 122242, 244484, 305605, 488968, 611210, 1222420, 2444840, 5073043, 10146086, 20292172, 25365215, 40584344, 50730430, 101460860, 202921720]

約数ペア:

[(1, 202921720), (2, 101460860), (4, 50730430), (5, 40584344), (8, 25365215), (10, 20292172), (20, 10146086), (40, 5073043), (83, 2444840), (166, 1222420), (332, 611210), (415, 488968), (664, 305605), (830, 244484), (1660, 122242), (3320, 61121)]