20056275

素因数分解:

$3^3\times 5^2\times {\mathrm{43}}^1\times {\mathrm{691}}^1$

素因数の和:753

約数の個数: 48

約数和(自身を含む): 37755520

約数和(自身を除く): 17699245

約数列:

[1, 3, 5, 9, 15, 25, 27, 43, 45, 75, 129, 135, 215, 225, 387, 645, 675, 691, 1075, 1161, 1935, 2073, 3225, 3455, 5805, 6219, 9675, 10365, 17275, 18657, 29025, 29713, 31095, 51825, 89139, 93285, 148565, 155475, 267417, 445695, 466425, 742825, 802251, 1337085, 2228475, 4011255, 6685425, 20056275]

約数ペア:

[(1, 20056275), (3, 6685425), (5, 4011255), (9, 2228475), (15, 1337085), (25, 802251), (27, 742825), (43, 466425), (45, 445695), (75, 267417), (129, 155475), (135, 148565), (215, 93285), (225, 89139), (387, 51825), (645, 31095), (675, 29713), (691, 29025), (1075, 18657), (1161, 17275), (1935, 10365), (2073, 9675), (3225, 6219), (3455, 5805)]