20102040

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{2659}}^1$

素因数の和:2686

約数の個数: 128

約数和(自身を含む): 76608000

約数和(自身を除く): 56505960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 84, 90, 105, 108, 120, 126, 135, 140, 168, 180, 189, 210, 216, 252, 270, 280, 315, 360, 378, 420, 504, 540, 630, 756, 840, 945, 1080, 1260, 1512, 1890, 2520, 2659, 3780, 5318, 7560, 7977, 10636, 13295, 15954, 18613, 21272, 23931, 26590, 31908, 37226, 39885, 47862, 53180, 55839, 63816, 71793, 74452, 79770, 93065, 95724, 106360, 111678, 119655, 143586, 148904, 159540, 167517, 186130, 191448, 223356, 239310, 279195, 287172, 319080, 335034, 358965, 372260, 446712, 478620, 502551, 558390, 574344, 670068, 717930, 744520, 837585, 957240, 1005102, 1116780, 1340136, 1435860, 1675170, 2010204, 2233560, 2512755, 2871720, 3350340, 4020408, 5025510, 6700680, 10051020, 20102040]

約数ペア:

[(1, 20102040), (2, 10051020), (3, 6700680), (4, 5025510), (5, 4020408), (6, 3350340), (7, 2871720), (8, 2512755), (9, 2233560), (10, 2010204), (12, 1675170), (14, 1435860), (15, 1340136), (18, 1116780), (20, 1005102), (21, 957240), (24, 837585), (27, 744520), (28, 717930), (30, 670068), (35, 574344), (36, 558390), (40, 502551), (42, 478620), (45, 446712), (54, 372260), (56, 358965), (60, 335034), (63, 319080), (70, 287172), (72, 279195), (84, 239310), (90, 223356), (105, 191448), (108, 186130), (120, 167517), (126, 159540), (135, 148904), (140, 143586), (168, 119655), (180, 111678), (189, 106360), (210, 95724), (216, 93065), (252, 79770), (270, 74452), (280, 71793), (315, 63816), (360, 55839), (378, 53180), (420, 47862), (504, 39885), (540, 37226), (630, 31908), (756, 26590), (840, 23931), (945, 21272), (1080, 18613), (1260, 15954), (1512, 13295), (1890, 10636), (2520, 7977), (2659, 7560), (3780, 5318)]