19965000

素因数分解:

$2^3\times 3^1\times 5^4\times {\mathrm{11}}^3$

素因数の和:62

約数の個数: 160

約数和(自身を含む): 68603040

約数和(自身を除く): 48638040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 25, 30, 33, 40, 44, 50, 55, 60, 66, 75, 88, 100, 110, 120, 121, 125, 132, 150, 165, 200, 220, 242, 250, 264, 275, 300, 330, 363, 375, 440, 484, 500, 550, 600, 605, 625, 660, 726, 750, 825, 968, 1000, 1100, 1210, 1250, 1320, 1331, 1375, 1452, 1500, 1650, 1815, 1875, 2200, 2420, 2500, 2662, 2750, 2904, 3000, 3025, 3300, 3630, 3750, 3993, 4125, 4840, 5000, 5324, 5500, 6050, 6600, 6655, 6875, 7260, 7500, 7986, 8250, 9075, 10648, 11000, 12100, 13310, 13750, 14520, 15000, 15125, 15972, 16500, 18150, 19965, 20625, 24200, 26620, 27500, 30250, 31944, 33000, 33275, 36300, 39930, 41250, 45375, 53240, 55000, 60500, 66550, 72600, 75625, 79860, 82500, 90750, 99825, 121000, 133100, 151250, 159720, 165000, 166375, 181500, 199650, 226875, 266200, 302500, 332750, 363000, 399300, 453750, 499125, 605000, 665500, 798600, 831875, 907500, 998250, 1331000, 1663750, 1815000, 1996500, 2495625, 3327500, 3993000, 4991250, 6655000, 9982500, 19965000]

約数ペア:

[(1, 19965000), (2, 9982500), (3, 6655000), (4, 4991250), (5, 3993000), (6, 3327500), (8, 2495625), (10, 1996500), (11, 1815000), (12, 1663750), (15, 1331000), (20, 998250), (22, 907500), (24, 831875), (25, 798600), (30, 665500), (33, 605000), (40, 499125), (44, 453750), (50, 399300), (55, 363000), (60, 332750), (66, 302500), (75, 266200), (88, 226875), (100, 199650), (110, 181500), (120, 166375), (121, 165000), (125, 159720), (132, 151250), (150, 133100), (165, 121000), (200, 99825), (220, 90750), (242, 82500), (250, 79860), (264, 75625), (275, 72600), (300, 66550), (330, 60500), (363, 55000), (375, 53240), (440, 45375), (484, 41250), (500, 39930), (550, 36300), (600, 33275), (605, 33000), (625, 31944), (660, 30250), (726, 27500), (750, 26620), (825, 24200), (968, 20625), (1000, 19965), (1100, 18150), (1210, 16500), (1250, 15972), (1320, 15125), (1331, 15000), (1375, 14520), (1452, 13750), (1500, 13310), (1650, 12100), (1815, 11000), (1875, 10648), (2200, 9075), (2420, 8250), (2500, 7986), (2662, 7500), (2750, 7260), (2904, 6875), (3000, 6655), (3025, 6600), (3300, 6050), (3630, 5500), (3750, 5324), (3993, 5000), (4125, 4840)]