20019690

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{1399}}^1$

素因数の和:1468

約数の個数: 64

約数和(自身を含む): 54432000

約数和(自身を除く): 34412310

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 53, 54, 90, 106, 135, 159, 265, 270, 318, 477, 530, 795, 954, 1399, 1431, 1590, 2385, 2798, 2862, 4197, 4770, 6995, 7155, 8394, 12591, 13990, 14310, 20985, 25182, 37773, 41970, 62955, 74147, 75546, 125910, 148294, 188865, 222441, 370735, 377730, 444882, 667323, 741470, 1112205, 1334646, 2001969, 2224410, 3336615, 4003938, 6673230, 10009845, 20019690]

約数ペア:

[(1, 20019690), (2, 10009845), (3, 6673230), (5, 4003938), (6, 3336615), (9, 2224410), (10, 2001969), (15, 1334646), (18, 1112205), (27, 741470), (30, 667323), (45, 444882), (53, 377730), (54, 370735), (90, 222441), (106, 188865), (135, 148294), (159, 125910), (265, 75546), (270, 74147), (318, 62955), (477, 41970), (530, 37773), (795, 25182), (954, 20985), (1399, 14310), (1431, 13990), (1590, 12591), (2385, 8394), (2798, 7155), (2862, 6995), (4197, 4770)]