20212687080

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{505823}}^1$

素因数の和:505880

約数の個数: 128

約数和(自身を含む): 69196723200

約数和(自身を除く): 48984036120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 37, 40, 45, 54, 60, 72, 74, 90, 108, 111, 120, 135, 148, 180, 185, 216, 222, 270, 296, 333, 360, 370, 444, 540, 555, 666, 740, 888, 999, 1080, 1110, 1332, 1480, 1665, 1998, 2220, 2664, 3330, 3996, 4440, 4995, 6660, 7992, 9990, 13320, 19980, 39960, 505823, 1011646, 1517469, 2023292, 2529115, 3034938, 4046584, 4552407, 5058230, 6069876, 7587345, 9104814, 10116460, 12139752, 13657221, 15174690, 18209628, 18715451, 20232920, 22762035, 27314442, 30349380, 36419256, 37430902, 45524070, 54628884, 56146353, 60698760, 68286105, 74861804, 91048140, 93577255, 109257768, 112292706, 136572210, 149723608, 168439059, 182096280, 187154510, 224585412, 273144420, 280731765, 336878118, 374309020, 449170824, 505317177, 546288840, 561463530, 673756236, 748618040, 842195295, 1010634354, 1122927060, 1347512472, 1684390590, 2021268708, 2245854120, 2526585885, 3368781180, 4042537416, 5053171770, 6737562360, 10106343540, 20212687080]

約数ペア:

[(1, 20212687080), (2, 10106343540), (3, 6737562360), (4, 5053171770), (5, 4042537416), (6, 3368781180), (8, 2526585885), (9, 2245854120), (10, 2021268708), (12, 1684390590), (15, 1347512472), (18, 1122927060), (20, 1010634354), (24, 842195295), (27, 748618040), (30, 673756236), (36, 561463530), (37, 546288840), (40, 505317177), (45, 449170824), (54, 374309020), (60, 336878118), (72, 280731765), (74, 273144420), (90, 224585412), (108, 187154510), (111, 182096280), (120, 168439059), (135, 149723608), (148, 136572210), (180, 112292706), (185, 109257768), (216, 93577255), (222, 91048140), (270, 74861804), (296, 68286105), (333, 60698760), (360, 56146353), (370, 54628884), (444, 45524070), (540, 37430902), (555, 36419256), (666, 30349380), (740, 27314442), (888, 22762035), (999, 20232920), (1080, 18715451), (1110, 18209628), (1332, 15174690), (1480, 13657221), (1665, 12139752), (1998, 10116460), (2220, 9104814), (2664, 7587345), (3330, 6069876), (3996, 5058230), (4440, 4552407), (4995, 4046584), (6660, 3034938), (7992, 2529115), (9990, 2023292), (13320, 1517469), (19980, 1011646), (39960, 505823)]