20313720

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{2687}}^1$

素因数の和:2714

約数の個数: 128

約数和(自身を含む): 77414400

約数和(自身を除く): 57100680

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, 2687, 3780, 5374, 7560, 8061, 10748, 13435, 16122, 18809, 21496, 24183, 26870, 32244, 37618, 40305, 48366, 53740, 56427, 64488, 72549, 75236, 80610, 94045, 96732, 107480, 112854, 120915, 145098, 150472, 161220, 169281, 188090, 193464, 225708, 241830, 282135, 290196, 322440, 338562, 362745, 376180, 451416, 483660, 507843, 564270, 580392, 677124, 725490, 752360, 846405, 967320, 1015686, 1128540, 1354248, 1450980, 1692810, 2031372, 2257080, 2539215, 2901960, 3385620, 4062744, 5078430, 6771240, 10156860, 20313720]

約数ペア:

[(1, 20313720), (2, 10156860), (3, 6771240), (4, 5078430), (5, 4062744), (6, 3385620), (7, 2901960), (8, 2539215), (9, 2257080), (10, 2031372), (12, 1692810), (14, 1450980), (15, 1354248), (18, 1128540), (20, 1015686), (21, 967320), (24, 846405), (27, 752360), (28, 725490), (30, 677124), (35, 580392), (36, 564270), (40, 507843), (42, 483660), (45, 451416), (54, 376180), (56, 362745), (60, 338562), (63, 322440), (70, 290196), (72, 282135), (84, 241830), (90, 225708), (105, 193464), (108, 188090), (120, 169281), (126, 161220), (135, 150472), (140, 145098), (168, 120915), (180, 112854), (189, 107480), (210, 96732), (216, 94045), (252, 80610), (270, 75236), (280, 72549), (315, 64488), (360, 56427), (378, 53740), (420, 48366), (504, 40305), (540, 37618), (630, 32244), (756, 26870), (840, 24183), (945, 21496), (1080, 18809), (1260, 16122), (1512, 13435), (1890, 10748), (2520, 8061), (2687, 7560), (3780, 5374)]