20736450

素因数分解:

$2^1\times 3^2\times 5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{227}}^1$

素因数の和:281

約数の個数: 144

約数和(自身を含む): 66156480

約数和(自身を除く): 45420030

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 29, 30, 35, 42, 45, 50, 58, 63, 70, 75, 87, 90, 105, 126, 145, 150, 174, 175, 203, 210, 225, 227, 261, 290, 315, 350, 406, 435, 450, 454, 522, 525, 609, 630, 681, 725, 870, 1015, 1050, 1135, 1218, 1305, 1362, 1450, 1575, 1589, 1827, 2030, 2043, 2175, 2270, 2610, 3045, 3150, 3178, 3405, 3654, 4086, 4350, 4767, 5075, 5675, 6090, 6525, 6583, 6810, 7945, 9135, 9534, 10150, 10215, 11350, 13050, 13166, 14301, 15225, 15890, 17025, 18270, 19749, 20430, 23835, 28602, 30450, 32915, 34050, 39498, 39725, 45675, 46081, 47670, 51075, 59247, 65830, 71505, 79450, 91350, 92162, 98745, 102150, 118494, 119175, 138243, 143010, 164575, 197490, 230405, 238350, 276486, 296235, 329150, 357525, 414729, 460810, 493725, 592470, 691215, 715050, 829458, 987450, 1152025, 1382430, 1481175, 2073645, 2304050, 2962350, 3456075, 4147290, 6912150, 10368225, 20736450]

約数ペア:

[(1, 20736450), (2, 10368225), (3, 6912150), (5, 4147290), (6, 3456075), (7, 2962350), (9, 2304050), (10, 2073645), (14, 1481175), (15, 1382430), (18, 1152025), (21, 987450), (25, 829458), (29, 715050), (30, 691215), (35, 592470), (42, 493725), (45, 460810), (50, 414729), (58, 357525), (63, 329150), (70, 296235), (75, 276486), (87, 238350), (90, 230405), (105, 197490), (126, 164575), (145, 143010), (150, 138243), (174, 119175), (175, 118494), (203, 102150), (210, 98745), (225, 92162), (227, 91350), (261, 79450), (290, 71505), (315, 65830), (350, 59247), (406, 51075), (435, 47670), (450, 46081), (454, 45675), (522, 39725), (525, 39498), (609, 34050), (630, 32915), (681, 30450), (725, 28602), (870, 23835), (1015, 20430), (1050, 19749), (1135, 18270), (1218, 17025), (1305, 15890), (1362, 15225), (1450, 14301), (1575, 13166), (1589, 13050), (1827, 11350), (2030, 10215), (2043, 10150), (2175, 9534), (2270, 9135), (2610, 7945), (3045, 6810), (3150, 6583), (3178, 6525), (3405, 6090), (3654, 5675), (4086, 5075), (4350, 4767)]