20920680

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{587}}^1$

素因数の和:621

約数の個数: 160

約数和(自身を含む): 76839840

約数和(自身を除く): 55919160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 27, 30, 33, 36, 40, 44, 45, 54, 55, 60, 66, 72, 81, 88, 90, 99, 108, 110, 120, 132, 135, 162, 165, 180, 198, 216, 220, 264, 270, 297, 324, 330, 360, 396, 405, 440, 495, 540, 587, 594, 648, 660, 792, 810, 891, 990, 1080, 1174, 1188, 1320, 1485, 1620, 1761, 1782, 1980, 2348, 2376, 2935, 2970, 3240, 3522, 3564, 3960, 4455, 4696, 5283, 5870, 5940, 6457, 7044, 7128, 8805, 8910, 10566, 11740, 11880, 12914, 14088, 15849, 17610, 17820, 19371, 21132, 23480, 25828, 26415, 31698, 32285, 35220, 35640, 38742, 42264, 47547, 51656, 52830, 58113, 63396, 64570, 70440, 77484, 79245, 95094, 96855, 105660, 116226, 126792, 129140, 154968, 158490, 174339, 190188, 193710, 211320, 232452, 237735, 258280, 290565, 316980, 348678, 380376, 387420, 464904, 475470, 523017, 581130, 633960, 697356, 774840, 871695, 950940, 1046034, 1162260, 1394712, 1743390, 1901880, 2092068, 2324520, 2615085, 3486780, 4184136, 5230170, 6973560, 10460340, 20920680]

約数ペア:

[(1, 20920680), (2, 10460340), (3, 6973560), (4, 5230170), (5, 4184136), (6, 3486780), (8, 2615085), (9, 2324520), (10, 2092068), (11, 1901880), (12, 1743390), (15, 1394712), (18, 1162260), (20, 1046034), (22, 950940), (24, 871695), (27, 774840), (30, 697356), (33, 633960), (36, 581130), (40, 523017), (44, 475470), (45, 464904), (54, 387420), (55, 380376), (60, 348678), (66, 316980), (72, 290565), (81, 258280), (88, 237735), (90, 232452), (99, 211320), (108, 193710), (110, 190188), (120, 174339), (132, 158490), (135, 154968), (162, 129140), (165, 126792), (180, 116226), (198, 105660), (216, 96855), (220, 95094), (264, 79245), (270, 77484), (297, 70440), (324, 64570), (330, 63396), (360, 58113), (396, 52830), (405, 51656), (440, 47547), (495, 42264), (540, 38742), (587, 35640), (594, 35220), (648, 32285), (660, 31698), (792, 26415), (810, 25828), (891, 23480), (990, 21132), (1080, 19371), (1174, 17820), (1188, 17610), (1320, 15849), (1485, 14088), (1620, 12914), (1761, 11880), (1782, 11740), (1980, 10566), (2348, 8910), (2376, 8805), (2935, 7128), (2970, 7044), (3240, 6457), (3522, 5940), (3564, 5870), (3960, 5283), (4455, 4696)]