7963280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:89

約数の個数: 120

約数和(自身を含む): 21784320

約数和(自身を除く): 13821040

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 31, 38, 40, 52, 62, 65, 76, 80, 95, 104, 124, 130, 152, 155, 169, 190, 208, 247, 248, 260, 304, 310, 338, 380, 403, 494, 496, 520, 589, 620, 676, 760, 806, 845, 988, 1040, 1178, 1235, 1240, 1352, 1520, 1612, 1690, 1976, 2015, 2356, 2470, 2480, 2704, 2945, 3211, 3224, 3380, 3952, 4030, 4712, 4940, 5239, 5890, 6422, 6448, 6760, 7657, 8060, 9424, 9880, 10478, 11780, 12844, 13520, 15314, 16055, 16120, 19760, 20956, 23560, 25688, 26195, 30628, 32110, 32240, 38285, 41912, 47120, 51376, 52390, 61256, 64220, 76570, 83824, 99541, 104780, 122512, 128440, 153140, 199082, 209560, 256880, 306280, 398164, 419120, 497705, 612560, 796328, 995410, 1592656, 1990820, 3981640, 7963280]

約数ペア:

[(1, 7963280), (2, 3981640), (4, 1990820), (5, 1592656), (8, 995410), (10, 796328), (13, 612560), (16, 497705), (19, 419120), (20, 398164), (26, 306280), (31, 256880), (38, 209560), (40, 199082), (52, 153140), (62, 128440), (65, 122512), (76, 104780), (80, 99541), (95, 83824), (104, 76570), (124, 64220), (130, 61256), (152, 52390), (155, 51376), (169, 47120), (190, 41912), (208, 38285), (247, 32240), (248, 32110), (260, 30628), (304, 26195), (310, 25688), (338, 23560), (380, 20956), (403, 19760), (494, 16120), (496, 16055), (520, 15314), (589, 13520), (620, 12844), (676, 11780), (760, 10478), (806, 9880), (845, 9424), (988, 8060), (1040, 7657), (1178, 6760), (1235, 6448), (1240, 6422), (1352, 5890), (1520, 5239), (1612, 4940), (1690, 4712), (1976, 4030), (2015, 3952), (2356, 3380), (2470, 3224), (2480, 3211), (2704, 2945)]