21388895880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2557}}^1\times {\mathrm{6337}}^1$

素因数の和:8919

約数の個数: 128

約数和(自身を含む): 70038449280

約数和(自身を除く): 48649553400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 264, 330, 440, 660, 1320, 2557, 5114, 6337, 7671, 10228, 12674, 12785, 15342, 19011, 20456, 25348, 25570, 28127, 30684, 31685, 38022, 38355, 50696, 51140, 56254, 61368, 63370, 69707, 76044, 76710, 84381, 95055, 102280, 112508, 126740, 139414, 140635, 152088, 153420, 168762, 190110, 209121, 225016, 253480, 278828, 281270, 306840, 337524, 348535, 380220, 418242, 421905, 557656, 562540, 675048, 697070, 760440, 836484, 843810, 1045605, 1125080, 1394140, 1672968, 1687620, 2091210, 2788280, 3375240, 4182420, 8364840, 16203709, 32407418, 48611127, 64814836, 81018545, 97222254, 129629672, 162037090, 178240799, 194444508, 243055635, 324074180, 356481598, 388889016, 486111270, 534722397, 648148360, 712963196, 891203995, 972222540, 1069444794, 1425926392, 1782407990, 1944445080, 2138889588, 2673611985, 3564815980, 4277779176, 5347223970, 7129631960, 10694447940, 21388895880]

約数ペア:

[(1, 21388895880), (2, 10694447940), (3, 7129631960), (4, 5347223970), (5, 4277779176), (6, 3564815980), (8, 2673611985), (10, 2138889588), (11, 1944445080), (12, 1782407990), (15, 1425926392), (20, 1069444794), (22, 972222540), (24, 891203995), (30, 712963196), (33, 648148360), (40, 534722397), (44, 486111270), (55, 388889016), (60, 356481598), (66, 324074180), (88, 243055635), (110, 194444508), (120, 178240799), (132, 162037090), (165, 129629672), (220, 97222254), (264, 81018545), (330, 64814836), (440, 48611127), (660, 32407418), (1320, 16203709), (2557, 8364840), (5114, 4182420), (6337, 3375240), (7671, 2788280), (10228, 2091210), (12674, 1687620), (12785, 1672968), (15342, 1394140), (19011, 1125080), (20456, 1045605), (25348, 843810), (25570, 836484), (28127, 760440), (30684, 697070), (31685, 675048), (38022, 562540), (38355, 557656), (50696, 421905), (51140, 418242), (56254, 380220), (61368, 348535), (63370, 337524), (69707, 306840), (76044, 281270), (76710, 278828), (84381, 253480), (95055, 225016), (102280, 209121), (112508, 190110), (126740, 168762), (139414, 153420), (140635, 152088)]