19685640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12619}}^1$

素因数の和:12646

約数の個数: 64

約数和(自身を含む): 63604800

約数和(自身を除く): 43919160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 12619, 25238, 37857, 50476, 63095, 75714, 100952, 126190, 151428, 164047, 189285, 252380, 302856, 328094, 378570, 492141, 504760, 656188, 757140, 820235, 984282, 1312376, 1514280, 1640470, 1968564, 2460705, 3280940, 3937128, 4921410, 6561880, 9842820, 19685640]

約数ペア:

[(1, 19685640), (2, 9842820), (3, 6561880), (4, 4921410), (5, 3937128), (6, 3280940), (8, 2460705), (10, 1968564), (12, 1640470), (13, 1514280), (15, 1312376), (20, 984282), (24, 820235), (26, 757140), (30, 656188), (39, 504760), (40, 492141), (52, 378570), (60, 328094), (65, 302856), (78, 252380), (104, 189285), (120, 164047), (130, 151428), (156, 126190), (195, 100952), (260, 75714), (312, 63095), (390, 50476), (520, 37857), (780, 25238), (1560, 12619)]