128573120

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{997}}^1$

素因数の和:1058

約数の個数: 112

約数和(自身を含む): 340693248

約数和(自身を除く): 212120128

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 130, 155, 160, 208, 248, 260, 310, 320, 403, 416, 496, 520, 620, 806, 832, 992, 997, 1040, 1240, 1612, 1984, 1994, 2015, 2080, 2480, 3224, 3988, 4030, 4160, 4960, 4985, 6448, 7976, 8060, 9920, 9970, 12896, 12961, 15952, 16120, 19940, 25792, 25922, 30907, 31904, 32240, 39880, 51844, 61814, 63808, 64480, 64805, 79760, 103688, 123628, 128960, 129610, 154535, 159520, 207376, 247256, 259220, 309070, 319040, 401791, 414752, 494512, 518440, 618140, 803582, 829504, 989024, 1036880, 1236280, 1607164, 1978048, 2008955, 2073760, 2472560, 3214328, 4017910, 4147520, 4945120, 6428656, 8035820, 9890240, 12857312, 16071640, 25714624, 32143280, 64286560, 128573120]

約数ペア:

[(1, 128573120), (2, 64286560), (4, 32143280), (5, 25714624), (8, 16071640), (10, 12857312), (13, 9890240), (16, 8035820), (20, 6428656), (26, 4945120), (31, 4147520), (32, 4017910), (40, 3214328), (52, 2472560), (62, 2073760), (64, 2008955), (65, 1978048), (80, 1607164), (104, 1236280), (124, 1036880), (130, 989024), (155, 829504), (160, 803582), (208, 618140), (248, 518440), (260, 494512), (310, 414752), (320, 401791), (403, 319040), (416, 309070), (496, 259220), (520, 247256), (620, 207376), (806, 159520), (832, 154535), (992, 129610), (997, 128960), (1040, 123628), (1240, 103688), (1612, 79760), (1984, 64805), (1994, 64480), (2015, 63808), (2080, 61814), (2480, 51844), (3224, 39880), (3988, 32240), (4030, 31904), (4160, 30907), (4960, 25922), (4985, 25792), (6448, 19940), (7976, 16120), (8060, 15952), (9920, 12961), (9970, 12896)]