20397250

素因数分解:

$2^1\times 5^3\times {\mathrm{83}}^1\times {\mathrm{983}}^1$

素因数の和:1083

約数の個数: 32

約数和(自身を含む): 38683008

約数和(自身を除く): 18285758

約数列:

[1, 2, 5, 10, 25, 50, 83, 125, 166, 250, 415, 830, 983, 1966, 2075, 4150, 4915, 9830, 10375, 20750, 24575, 49150, 81589, 122875, 163178, 245750, 407945, 815890, 2039725, 4079450, 10198625, 20397250]

約数ペア:

[(1, 20397250), (2, 10198625), (5, 4079450), (10, 2039725), (25, 815890), (50, 407945), (83, 245750), (125, 163178), (166, 122875), (250, 81589), (415, 49150), (830, 24575), (983, 20750), (1966, 10375), (2075, 9830), (4150, 4915)]