78097160

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1\times {\mathrm{257}}^1$

素因数の和:446

約数の個数: 64

約数和(自身を含む): 180558720

約数和(自身を除く): 102461560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 107, 142, 214, 257, 284, 355, 428, 514, 535, 568, 710, 856, 1028, 1070, 1285, 1420, 2056, 2140, 2570, 2840, 4280, 5140, 7597, 10280, 15194, 18247, 27499, 30388, 36494, 37985, 54998, 60776, 72988, 75970, 91235, 109996, 137495, 145976, 151940, 182470, 219992, 274990, 303880, 364940, 549980, 729880, 1099960, 1952429, 3904858, 7809716, 9762145, 15619432, 19524290, 39048580, 78097160]

約数ペア:

[(1, 78097160), (2, 39048580), (4, 19524290), (5, 15619432), (8, 9762145), (10, 7809716), (20, 3904858), (40, 1952429), (71, 1099960), (107, 729880), (142, 549980), (214, 364940), (257, 303880), (284, 274990), (355, 219992), (428, 182470), (514, 151940), (535, 145976), (568, 137495), (710, 109996), (856, 91235), (1028, 75970), (1070, 72988), (1285, 60776), (1420, 54998), (2056, 37985), (2140, 36494), (2570, 30388), (2840, 27499), (4280, 18247), (5140, 15194), (7597, 10280)]