19911840

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3191}}^1$

素因数の和:3222

約数の個数: 96

約数和(自身を含む): 67568256

約数和(自身を除く): 47656416

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 65, 78, 80, 96, 104, 120, 130, 156, 160, 195, 208, 240, 260, 312, 390, 416, 480, 520, 624, 780, 1040, 1248, 1560, 2080, 3120, 3191, 6240, 6382, 9573, 12764, 15955, 19146, 25528, 31910, 38292, 41483, 47865, 51056, 63820, 76584, 82966, 95730, 102112, 124449, 127640, 153168, 165932, 191460, 207415, 248898, 255280, 306336, 331864, 382920, 414830, 497796, 510560, 622245, 663728, 765840, 829660, 995592, 1244490, 1327456, 1531680, 1659320, 1991184, 2488980, 3318640, 3982368, 4977960, 6637280, 9955920, 19911840]

約数ペア:

[(1, 19911840), (2, 9955920), (3, 6637280), (4, 4977960), (5, 3982368), (6, 3318640), (8, 2488980), (10, 1991184), (12, 1659320), (13, 1531680), (15, 1327456), (16, 1244490), (20, 995592), (24, 829660), (26, 765840), (30, 663728), (32, 622245), (39, 510560), (40, 497796), (48, 414830), (52, 382920), (60, 331864), (65, 306336), (78, 255280), (80, 248898), (96, 207415), (104, 191460), (120, 165932), (130, 153168), (156, 127640), (160, 124449), (195, 102112), (208, 95730), (240, 82966), (260, 76584), (312, 63820), (390, 51056), (416, 47865), (480, 41483), (520, 38292), (624, 31910), (780, 25528), (1040, 19146), (1248, 15955), (1560, 12764), (2080, 9573), (3120, 6382), (3191, 6240)]