28549300

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{21961}}^1$

素因数の和:21988

約数の個数: 36

約数和(自身を含む): 66720556

約数和(自身を除く): 38171256

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 21961, 43922, 87844, 109805, 219610, 285493, 439220, 549025, 570986, 1098050, 1141972, 1427465, 2196100, 2854930, 5709860, 7137325, 14274650, 28549300]

約数ペア:

[(1, 28549300), (2, 14274650), (4, 7137325), (5, 5709860), (10, 2854930), (13, 2196100), (20, 1427465), (25, 1141972), (26, 1098050), (50, 570986), (52, 549025), (65, 439220), (100, 285493), (130, 219610), (260, 109805), (325, 87844), (650, 43922), (1300, 21961)]