26981240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1$

素因数の和:177

約数の個数: 128

約数和(自身を含む): 73483200

約数和(自身を除く): 46501960

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 53, 55, 65, 88, 89, 104, 106, 110, 130, 143, 178, 212, 220, 260, 265, 286, 356, 424, 440, 445, 520, 530, 572, 583, 689, 712, 715, 890, 979, 1060, 1144, 1157, 1166, 1378, 1430, 1780, 1958, 2120, 2314, 2332, 2756, 2860, 2915, 3445, 3560, 3916, 4628, 4664, 4717, 4895, 5512, 5720, 5785, 5830, 6890, 7579, 7832, 9256, 9434, 9790, 11570, 11660, 12727, 13780, 15158, 18868, 19580, 23140, 23320, 23585, 25454, 27560, 30316, 37736, 37895, 39160, 46280, 47170, 50908, 51887, 60632, 61321, 63635, 75790, 94340, 101816, 103774, 122642, 127270, 151580, 188680, 207548, 245284, 254540, 259435, 303160, 306605, 415096, 490568, 509080, 518870, 613210, 674531, 1037740, 1226420, 1349062, 2075480, 2452840, 2698124, 3372655, 5396248, 6745310, 13490620, 26981240]

約数ペア:

[(1, 26981240), (2, 13490620), (4, 6745310), (5, 5396248), (8, 3372655), (10, 2698124), (11, 2452840), (13, 2075480), (20, 1349062), (22, 1226420), (26, 1037740), (40, 674531), (44, 613210), (52, 518870), (53, 509080), (55, 490568), (65, 415096), (88, 306605), (89, 303160), (104, 259435), (106, 254540), (110, 245284), (130, 207548), (143, 188680), (178, 151580), (212, 127270), (220, 122642), (260, 103774), (265, 101816), (286, 94340), (356, 75790), (424, 63635), (440, 61321), (445, 60632), (520, 51887), (530, 50908), (572, 47170), (583, 46280), (689, 39160), (712, 37895), (715, 37736), (890, 30316), (979, 27560), (1060, 25454), (1144, 23585), (1157, 23320), (1166, 23140), (1378, 19580), (1430, 18868), (1780, 15158), (1958, 13780), (2120, 12727), (2314, 11660), (2332, 11570), (2756, 9790), (2860, 9434), (2915, 9256), (3445, 7832), (3560, 7579), (3916, 6890), (4628, 5830), (4664, 5785), (4717, 5720), (4895, 5512)]