55489720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:233

約数の個数: 128

約数和(自身を含む): 149688000

約数和(自身を除く): 94198280

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 89, 104, 109, 110, 130, 143, 178, 218, 220, 260, 286, 356, 436, 440, 445, 520, 545, 572, 712, 715, 872, 890, 979, 1090, 1144, 1157, 1199, 1417, 1430, 1780, 1958, 2180, 2314, 2398, 2834, 2860, 3560, 3916, 4360, 4628, 4796, 4895, 5668, 5720, 5785, 5995, 7085, 7832, 9256, 9592, 9701, 9790, 11336, 11570, 11990, 12727, 14170, 15587, 19402, 19580, 23140, 23980, 25454, 28340, 31174, 38804, 39160, 46280, 47960, 48505, 50908, 56680, 62348, 63635, 77608, 77935, 97010, 101816, 106711, 124696, 126113, 127270, 155870, 194020, 213422, 252226, 254540, 311740, 388040, 426844, 504452, 509080, 533555, 623480, 630565, 853688, 1008904, 1067110, 1261130, 1387243, 2134220, 2522260, 2774486, 4268440, 5044520, 5548972, 6936215, 11097944, 13872430, 27744860, 55489720]

約数ペア:

[(1, 55489720), (2, 27744860), (4, 13872430), (5, 11097944), (8, 6936215), (10, 5548972), (11, 5044520), (13, 4268440), (20, 2774486), (22, 2522260), (26, 2134220), (40, 1387243), (44, 1261130), (52, 1067110), (55, 1008904), (65, 853688), (88, 630565), (89, 623480), (104, 533555), (109, 509080), (110, 504452), (130, 426844), (143, 388040), (178, 311740), (218, 254540), (220, 252226), (260, 213422), (286, 194020), (356, 155870), (436, 127270), (440, 126113), (445, 124696), (520, 106711), (545, 101816), (572, 97010), (712, 77935), (715, 77608), (872, 63635), (890, 62348), (979, 56680), (1090, 50908), (1144, 48505), (1157, 47960), (1199, 46280), (1417, 39160), (1430, 38804), (1780, 31174), (1958, 28340), (2180, 25454), (2314, 23980), (2398, 23140), (2834, 19580), (2860, 19402), (3560, 15587), (3916, 14170), (4360, 12727), (4628, 11990), (4796, 11570), (4895, 11336), (5668, 9790), (5720, 9701), (5785, 9592), (5995, 9256), (7085, 7832)]