20751930

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{151}}^1\times {\mathrm{509}}^1$

素因数の和:676

約数の個数: 64

約数和(自身を含む): 55814400

約数和(自身を除く): 35062470

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 151, 270, 302, 453, 509, 755, 906, 1018, 1359, 1510, 1527, 2265, 2545, 2718, 3054, 4077, 4530, 4581, 5090, 6795, 7635, 8154, 9162, 13590, 13743, 15270, 20385, 22905, 27486, 40770, 45810, 68715, 76859, 137430, 153718, 230577, 384295, 461154, 691731, 768590, 1152885, 1383462, 2075193, 2305770, 3458655, 4150386, 6917310, 10375965, 20751930]

約数ペア:

[(1, 20751930), (2, 10375965), (3, 6917310), (5, 4150386), (6, 3458655), (9, 2305770), (10, 2075193), (15, 1383462), (18, 1152885), (27, 768590), (30, 691731), (45, 461154), (54, 384295), (90, 230577), (135, 153718), (151, 137430), (270, 76859), (302, 68715), (453, 45810), (509, 40770), (755, 27486), (906, 22905), (1018, 20385), (1359, 15270), (1510, 13743), (1527, 13590), (2265, 9162), (2545, 8154), (2718, 7635), (3054, 6795), (4077, 5090), (4530, 4581)]