19807140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{463}}^1$

素因数の和:529

約数の個数: 96

約数和(自身を含む): 59867136

約数和(自身を除く): 40059996

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 31, 46, 60, 62, 69, 92, 93, 115, 124, 138, 155, 186, 230, 276, 310, 345, 372, 460, 463, 465, 620, 690, 713, 926, 930, 1380, 1389, 1426, 1852, 1860, 2139, 2315, 2778, 2852, 3565, 4278, 4630, 5556, 6945, 7130, 8556, 9260, 10649, 10695, 13890, 14260, 14353, 21298, 21390, 27780, 28706, 31947, 42596, 42780, 43059, 53245, 57412, 63894, 71765, 86118, 106490, 127788, 143530, 159735, 172236, 212980, 215295, 287060, 319470, 330119, 430590, 638940, 660238, 861180, 990357, 1320476, 1650595, 1980714, 3301190, 3961428, 4951785, 6602380, 9903570, 19807140]

約数ペア:

[(1, 19807140), (2, 9903570), (3, 6602380), (4, 4951785), (5, 3961428), (6, 3301190), (10, 1980714), (12, 1650595), (15, 1320476), (20, 990357), (23, 861180), (30, 660238), (31, 638940), (46, 430590), (60, 330119), (62, 319470), (69, 287060), (92, 215295), (93, 212980), (115, 172236), (124, 159735), (138, 143530), (155, 127788), (186, 106490), (230, 86118), (276, 71765), (310, 63894), (345, 57412), (372, 53245), (460, 43059), (463, 42780), (465, 42596), (620, 31947), (690, 28706), (713, 27780), (926, 21390), (930, 21298), (1380, 14353), (1389, 14260), (1426, 13890), (1852, 10695), (1860, 10649), (2139, 9260), (2315, 8556), (2778, 7130), (2852, 6945), (3565, 5556), (4278, 4630)]