20806500

素因数分解:

$2^2\times 3^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1$

素因数の和:143

約数の個数: 192

約数和(自身を含む): 71914752

約数和(自身を除く): 51108252

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 13, 15, 20, 22, 25, 26, 30, 33, 39, 44, 50, 52, 55, 60, 65, 66, 75, 78, 97, 100, 110, 125, 130, 132, 143, 150, 156, 165, 194, 195, 220, 250, 260, 275, 286, 291, 300, 325, 330, 375, 388, 390, 429, 485, 500, 550, 572, 582, 650, 660, 715, 750, 780, 825, 858, 970, 975, 1067, 1100, 1164, 1261, 1300, 1375, 1430, 1455, 1500, 1625, 1650, 1716, 1940, 1950, 2134, 2145, 2425, 2522, 2750, 2860, 2910, 3201, 3250, 3300, 3575, 3783, 3900, 4125, 4268, 4290, 4850, 4875, 5044, 5335, 5500, 5820, 6305, 6402, 6500, 7150, 7275, 7566, 8250, 8580, 9700, 9750, 10670, 10725, 12125, 12610, 12804, 13871, 14300, 14550, 15132, 16005, 16500, 17875, 18915, 19500, 21340, 21450, 24250, 25220, 26675, 27742, 29100, 31525, 32010, 35750, 36375, 37830, 41613, 42900, 48500, 53350, 53625, 55484, 63050, 64020, 69355, 71500, 72750, 75660, 80025, 83226, 94575, 106700, 107250, 126100, 133375, 138710, 145500, 157625, 160050, 166452, 189150, 208065, 214500, 266750, 277420, 315250, 320100, 346775, 378300, 400125, 416130, 472875, 533500, 630500, 693550, 800250, 832260, 945750, 1040325, 1387100, 1600500, 1733875, 1891500, 2080650, 3467750, 4161300, 5201625, 6935500, 10403250, 20806500]

約数ペア:

[(1, 20806500), (2, 10403250), (3, 6935500), (4, 5201625), (5, 4161300), (6, 3467750), (10, 2080650), (11, 1891500), (12, 1733875), (13, 1600500), (15, 1387100), (20, 1040325), (22, 945750), (25, 832260), (26, 800250), (30, 693550), (33, 630500), (39, 533500), (44, 472875), (50, 416130), (52, 400125), (55, 378300), (60, 346775), (65, 320100), (66, 315250), (75, 277420), (78, 266750), (97, 214500), (100, 208065), (110, 189150), (125, 166452), (130, 160050), (132, 157625), (143, 145500), (150, 138710), (156, 133375), (165, 126100), (194, 107250), (195, 106700), (220, 94575), (250, 83226), (260, 80025), (275, 75660), (286, 72750), (291, 71500), (300, 69355), (325, 64020), (330, 63050), (375, 55484), (388, 53625), (390, 53350), (429, 48500), (485, 42900), (500, 41613), (550, 37830), (572, 36375), (582, 35750), (650, 32010), (660, 31525), (715, 29100), (750, 27742), (780, 26675), (825, 25220), (858, 24250), (970, 21450), (975, 21340), (1067, 19500), (1100, 18915), (1164, 17875), (1261, 16500), (1300, 16005), (1375, 15132), (1430, 14550), (1455, 14300), (1500, 13871), (1625, 12804), (1650, 12610), (1716, 12125), (1940, 10725), (1950, 10670), (2134, 9750), (2145, 9700), (2425, 8580), (2522, 8250), (2750, 7566), (2860, 7275), (2910, 7150), (3201, 6500), (3250, 6402), (3300, 6305), (3575, 5820), (3783, 5500), (3900, 5335), (4125, 5044), (4268, 4875), (4290, 4850)]