640053480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{7949}}^1$

素因数の和:8035

約数の個数: 128

約数和(自身を含む): 2129328000

約数和(自身を除く): 1489274520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 61, 66, 88, 110, 120, 122, 132, 165, 183, 220, 244, 264, 305, 330, 366, 440, 488, 610, 660, 671, 732, 915, 1220, 1320, 1342, 1464, 1830, 2013, 2440, 2684, 3355, 3660, 4026, 5368, 6710, 7320, 7949, 8052, 10065, 13420, 15898, 16104, 20130, 23847, 26840, 31796, 39745, 40260, 47694, 63592, 79490, 80520, 87439, 95388, 119235, 158980, 174878, 190776, 238470, 262317, 317960, 349756, 437195, 476940, 484889, 524634, 699512, 874390, 953880, 969778, 1049268, 1311585, 1454667, 1748780, 1939556, 2098536, 2424445, 2623170, 2909334, 3497560, 3879112, 4848890, 5246340, 5333779, 5818668, 7273335, 9697780, 10492680, 10667558, 11637336, 14546670, 16001337, 19395560, 21335116, 26668895, 29093340, 32002674, 42670232, 53337790, 58186680, 64005348, 80006685, 106675580, 128010696, 160013370, 213351160, 320026740, 640053480]

約数ペア:

[(1, 640053480), (2, 320026740), (3, 213351160), (4, 160013370), (5, 128010696), (6, 106675580), (8, 80006685), (10, 64005348), (11, 58186680), (12, 53337790), (15, 42670232), (20, 32002674), (22, 29093340), (24, 26668895), (30, 21335116), (33, 19395560), (40, 16001337), (44, 14546670), (55, 11637336), (60, 10667558), (61, 10492680), (66, 9697780), (88, 7273335), (110, 5818668), (120, 5333779), (122, 5246340), (132, 4848890), (165, 3879112), (183, 3497560), (220, 2909334), (244, 2623170), (264, 2424445), (305, 2098536), (330, 1939556), (366, 1748780), (440, 1454667), (488, 1311585), (610, 1049268), (660, 969778), (671, 953880), (732, 874390), (915, 699512), (1220, 524634), (1320, 484889), (1342, 476940), (1464, 437195), (1830, 349756), (2013, 317960), (2440, 262317), (2684, 238470), (3355, 190776), (3660, 174878), (4026, 158980), (5368, 119235), (6710, 95388), (7320, 87439), (7949, 80520), (8052, 79490), (10065, 63592), (13420, 47694), (15898, 40260), (16104, 39745), (20130, 31796), (23847, 26840)]