20803635720

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{8255411}}^1$

素因数の和:8255435

約数の個数: 96

約数和(自身を含む): 77270656320

約数和(自身を除く): 56467020600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 63, 70, 72, 84, 90, 105, 120, 126, 140, 168, 180, 210, 252, 280, 315, 360, 420, 504, 630, 840, 1260, 2520, 8255411, 16510822, 24766233, 33021644, 41277055, 49532466, 57787877, 66043288, 74298699, 82554110, 99064932, 115575754, 123831165, 148597398, 165108220, 173363631, 198129864, 231151508, 247662330, 288939385, 297194796, 330216440, 346727262, 371493495, 462303016, 495324660, 520090893, 577878770, 594389592, 693454524, 742986990, 866818155, 990649320, 1040181786, 1155757540, 1386909048, 1485973980, 1733636310, 2080363572, 2311515080, 2600454465, 2971947960, 3467272620, 4160727144, 5200908930, 6934545240, 10401817860, 20803635720]

約数ペア:

[(1, 20803635720), (2, 10401817860), (3, 6934545240), (4, 5200908930), (5, 4160727144), (6, 3467272620), (7, 2971947960), (8, 2600454465), (9, 2311515080), (10, 2080363572), (12, 1733636310), (14, 1485973980), (15, 1386909048), (18, 1155757540), (20, 1040181786), (21, 990649320), (24, 866818155), (28, 742986990), (30, 693454524), (35, 594389592), (36, 577878770), (40, 520090893), (42, 495324660), (45, 462303016), (56, 371493495), (60, 346727262), (63, 330216440), (70, 297194796), (72, 288939385), (84, 247662330), (90, 231151508), (105, 198129864), (120, 173363631), (126, 165108220), (140, 148597398), (168, 123831165), (180, 115575754), (210, 99064932), (252, 82554110), (280, 74298699), (315, 66043288), (360, 57787877), (420, 49532466), (504, 41277055), (630, 33021644), (840, 24766233), (1260, 16510822), (2520, 8255411)]