20828616480

素因数分解:

$2^5\times 3^3\times 5^1\times 7^1\times {\mathrm{688777}}^1$

素因数の和:688808

約数の個数: 192

約数和(自身を含む): 83314586880

約数和(自身を除く): 62485970400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 108, 112, 120, 126, 135, 140, 144, 160, 168, 180, 189, 210, 216, 224, 240, 252, 270, 280, 288, 315, 336, 360, 378, 420, 432, 480, 504, 540, 560, 630, 672, 720, 756, 840, 864, 945, 1008, 1080, 1120, 1260, 1440, 1512, 1680, 1890, 2016, 2160, 2520, 3024, 3360, 3780, 4320, 5040, 6048, 7560, 10080, 15120, 30240, 688777, 1377554, 2066331, 2755108, 3443885, 4132662, 4821439, 5510216, 6198993, 6887770, 8265324, 9642878, 10331655, 11020432, 12397986, 13775540, 14464317, 16530648, 18596979, 19285756, 20663310, 22040864, 24107195, 24795972, 27551080, 28928634, 30994965, 33061296, 37193958, 38571512, 41326620, 43392951, 48214390, 49591944, 55102160, 57857268, 61989930, 66122592, 72321585, 74387916, 77143024, 82653240, 86785902, 92984895, 96428780, 99183888, 110204320, 115714536, 123979860, 130178853, 144643170, 148775832, 154286048, 165306480, 173571804, 185969790, 192857560, 198367776, 216964755, 231429072, 247959720, 260357706, 289286340, 297551664, 330612960, 347143608, 371939580, 385715120, 433929510, 462858144, 495919440, 520715412, 578572680, 595103328, 650894265, 694287216, 743879160, 771430240, 867859020, 991838880, 1041430824, 1157145360, 1301788530, 1388574432, 1487758320, 1735718040, 2082861648, 2314290720, 2603577060, 2975516640, 3471436080, 4165723296, 5207154120, 6942872160, 10414308240, 20828616480]

約数ペア:

[(1, 20828616480), (2, 10414308240), (3, 6942872160), (4, 5207154120), (5, 4165723296), (6, 3471436080), (7, 2975516640), (8, 2603577060), (9, 2314290720), (10, 2082861648), (12, 1735718040), (14, 1487758320), (15, 1388574432), (16, 1301788530), (18, 1157145360), (20, 1041430824), (21, 991838880), (24, 867859020), (27, 771430240), (28, 743879160), (30, 694287216), (32, 650894265), (35, 595103328), (36, 578572680), (40, 520715412), (42, 495919440), (45, 462858144), (48, 433929510), (54, 385715120), (56, 371939580), (60, 347143608), (63, 330612960), (70, 297551664), (72, 289286340), (80, 260357706), (84, 247959720), (90, 231429072), (96, 216964755), (105, 198367776), (108, 192857560), (112, 185969790), (120, 173571804), (126, 165306480), (135, 154286048), (140, 148775832), (144, 144643170), (160, 130178853), (168, 123979860), (180, 115714536), (189, 110204320), (210, 99183888), (216, 96428780), (224, 92984895), (240, 86785902), (252, 82653240), (270, 77143024), (280, 74387916), (288, 72321585), (315, 66122592), (336, 61989930), (360, 57857268), (378, 55102160), (420, 49591944), (432, 48214390), (480, 43392951), (504, 41326620), (540, 38571512), (560, 37193958), (630, 33061296), (672, 30994965), (720, 28928634), (756, 27551080), (840, 24795972), (864, 24107195), (945, 22040864), (1008, 20663310), (1080, 19285756), (1120, 18596979), (1260, 16530648), (1440, 14464317), (1512, 13775540), (1680, 12397986), (1890, 11020432), (2016, 10331655), (2160, 9642878), (2520, 8265324), (3024, 6887770), (3360, 6198993), (3780, 5510216), (4320, 4821439), (5040, 4132662), (6048, 3443885), (7560, 2755108), (10080, 2066331), (15120, 1377554), (30240, 688777)]