19776250

素因数分解:

$2^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{1217}}^1$

素因数の和:1252

約数の個数: 40

約数和(自身を含む): 39952836

約数和(自身を除く): 20176586

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 250, 325, 625, 650, 1217, 1250, 1625, 2434, 3250, 6085, 8125, 12170, 15821, 16250, 30425, 31642, 60850, 79105, 152125, 158210, 304250, 395525, 760625, 791050, 1521250, 1977625, 3955250, 9888125, 19776250]

約数ペア:

[(1, 19776250), (2, 9888125), (5, 3955250), (10, 1977625), (13, 1521250), (25, 791050), (26, 760625), (50, 395525), (65, 304250), (125, 158210), (130, 152125), (250, 79105), (325, 60850), (625, 31642), (650, 30425), (1217, 16250), (1250, 15821), (1625, 12170), (2434, 8125), (3250, 6085)]