20965560

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2269}}^1$

素因数の和:2301

約数の個数: 128

約数和(自身を含む): 78451200

約数和(自身を除く): 57485640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 20, 21, 22, 24, 28, 30, 33, 35, 40, 42, 44, 55, 56, 60, 66, 70, 77, 84, 88, 105, 110, 120, 132, 140, 154, 165, 168, 210, 220, 231, 264, 280, 308, 330, 385, 420, 440, 462, 616, 660, 770, 840, 924, 1155, 1320, 1540, 1848, 2269, 2310, 3080, 4538, 4620, 6807, 9076, 9240, 11345, 13614, 15883, 18152, 22690, 24959, 27228, 31766, 34035, 45380, 47649, 49918, 54456, 63532, 68070, 74877, 79415, 90760, 95298, 99836, 124795, 127064, 136140, 149754, 158830, 174713, 190596, 199672, 238245, 249590, 272280, 299508, 317660, 349426, 374385, 381192, 476490, 499180, 524139, 599016, 635320, 698852, 748770, 873565, 952980, 998360, 1048278, 1397704, 1497540, 1747130, 1905960, 2096556, 2620695, 2995080, 3494260, 4193112, 5241390, 6988520, 10482780, 20965560]

約数ペア:

[(1, 20965560), (2, 10482780), (3, 6988520), (4, 5241390), (5, 4193112), (6, 3494260), (7, 2995080), (8, 2620695), (10, 2096556), (11, 1905960), (12, 1747130), (14, 1497540), (15, 1397704), (20, 1048278), (21, 998360), (22, 952980), (24, 873565), (28, 748770), (30, 698852), (33, 635320), (35, 599016), (40, 524139), (42, 499180), (44, 476490), (55, 381192), (56, 374385), (60, 349426), (66, 317660), (70, 299508), (77, 272280), (84, 249590), (88, 238245), (105, 199672), (110, 190596), (120, 174713), (132, 158830), (140, 149754), (154, 136140), (165, 127064), (168, 124795), (210, 99836), (220, 95298), (231, 90760), (264, 79415), (280, 74877), (308, 68070), (330, 63532), (385, 54456), (420, 49918), (440, 47649), (462, 45380), (616, 34035), (660, 31766), (770, 27228), (840, 24959), (924, 22690), (1155, 18152), (1320, 15883), (1540, 13614), (1848, 11345), (2269, 9240), (2310, 9076), (3080, 6807), (4538, 4620)]