20881470

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{571}}^1$

素因数の和:657

約数の個数: 64

約数和(自身を含む): 53374464

約数和(自身を除く): 32492994

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 53, 69, 106, 115, 138, 159, 230, 265, 318, 345, 530, 571, 690, 795, 1142, 1219, 1590, 1713, 2438, 2855, 3426, 3657, 5710, 6095, 7314, 8565, 12190, 13133, 17130, 18285, 26266, 30263, 36570, 39399, 60526, 65665, 78798, 90789, 131330, 151315, 181578, 196995, 302630, 393990, 453945, 696049, 907890, 1392098, 2088147, 3480245, 4176294, 6960490, 10440735, 20881470]

約数ペア:

[(1, 20881470), (2, 10440735), (3, 6960490), (5, 4176294), (6, 3480245), (10, 2088147), (15, 1392098), (23, 907890), (30, 696049), (46, 453945), (53, 393990), (69, 302630), (106, 196995), (115, 181578), (138, 151315), (159, 131330), (230, 90789), (265, 78798), (318, 65665), (345, 60526), (530, 39399), (571, 36570), (690, 30263), (795, 26266), (1142, 18285), (1219, 17130), (1590, 13133), (1713, 12190), (2438, 8565), (2855, 7314), (3426, 6095), (3657, 5710)]