16528980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{21191}}^1$

素因数の和:21216

約数の個数: 48

約数和(自身を含む): 49843584

約数和(自身を除く): 33314604

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 21191, 42382, 63573, 84764, 105955, 127146, 211910, 254292, 275483, 317865, 423820, 550966, 635730, 826449, 1101932, 1271460, 1377415, 1652898, 2754830, 3305796, 4132245, 5509660, 8264490, 16528980]

約数ペア:

[(1, 16528980), (2, 8264490), (3, 5509660), (4, 4132245), (5, 3305796), (6, 2754830), (10, 1652898), (12, 1377415), (13, 1271460), (15, 1101932), (20, 826449), (26, 635730), (30, 550966), (39, 423820), (52, 317865), (60, 275483), (65, 254292), (78, 211910), (130, 127146), (156, 105955), (195, 84764), (260, 63573), (390, 42382), (780, 21191)]