81352040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{433}}^1$

素因数の和:523

約数の個数: 128

約数和(自身を含む): 232485120

約数和(自身を除く): 151133080

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 61, 70, 77, 88, 110, 122, 140, 154, 220, 244, 280, 305, 308, 385, 427, 433, 440, 488, 610, 616, 671, 770, 854, 866, 1220, 1342, 1540, 1708, 1732, 2135, 2165, 2440, 2684, 3031, 3080, 3355, 3416, 3464, 4270, 4330, 4697, 4763, 5368, 6062, 6710, 8540, 8660, 9394, 9526, 12124, 13420, 15155, 17080, 17320, 18788, 19052, 23485, 23815, 24248, 26413, 26840, 30310, 33341, 37576, 38104, 46970, 47630, 52826, 60620, 66682, 93940, 95260, 105652, 121240, 132065, 133364, 166705, 184891, 187880, 190520, 211304, 264130, 266728, 290543, 333410, 369782, 528260, 581086, 666820, 739564, 924455, 1056520, 1162172, 1333640, 1452715, 1479128, 1848910, 2033801, 2324344, 2905430, 3697820, 4067602, 5810860, 7395640, 8135204, 10169005, 11621720, 16270408, 20338010, 40676020, 81352040]

約数ペア:

[(1, 81352040), (2, 40676020), (4, 20338010), (5, 16270408), (7, 11621720), (8, 10169005), (10, 8135204), (11, 7395640), (14, 5810860), (20, 4067602), (22, 3697820), (28, 2905430), (35, 2324344), (40, 2033801), (44, 1848910), (55, 1479128), (56, 1452715), (61, 1333640), (70, 1162172), (77, 1056520), (88, 924455), (110, 739564), (122, 666820), (140, 581086), (154, 528260), (220, 369782), (244, 333410), (280, 290543), (305, 266728), (308, 264130), (385, 211304), (427, 190520), (433, 187880), (440, 184891), (488, 166705), (610, 133364), (616, 132065), (671, 121240), (770, 105652), (854, 95260), (866, 93940), (1220, 66682), (1342, 60620), (1540, 52826), (1708, 47630), (1732, 46970), (2135, 38104), (2165, 37576), (2440, 33341), (2684, 30310), (3031, 26840), (3080, 26413), (3355, 24248), (3416, 23815), (3464, 23485), (4270, 19052), (4330, 18788), (4697, 17320), (4763, 17080), (5368, 15155), (6062, 13420), (6710, 12124), (8540, 9526), (8660, 9394)]