28378458

素因数分解:

$2^1\times 3^3\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{313}}^1$

素因数の和:420

約数の個数: 64

約数和(自身を含む): 66919680

約数和(自身を除く): 38541222

約数列:

[1, 2, 3, 6, 9, 18, 23, 27, 46, 54, 69, 73, 138, 146, 207, 219, 313, 414, 438, 621, 626, 657, 939, 1242, 1314, 1679, 1878, 1971, 2817, 3358, 3942, 5037, 5634, 7199, 8451, 10074, 14398, 15111, 16902, 21597, 22849, 30222, 43194, 45333, 45698, 64791, 68547, 90666, 129582, 137094, 194373, 205641, 388746, 411282, 525527, 616923, 1051054, 1233846, 1576581, 3153162, 4729743, 9459486, 14189229, 28378458]

約数ペア:

[(1, 28378458), (2, 14189229), (3, 9459486), (6, 4729743), (9, 3153162), (18, 1576581), (23, 1233846), (27, 1051054), (46, 616923), (54, 525527), (69, 411282), (73, 388746), (138, 205641), (146, 194373), (207, 137094), (219, 129582), (313, 90666), (414, 68547), (438, 64791), (621, 45698), (626, 45333), (657, 43194), (939, 30222), (1242, 22849), (1314, 21597), (1679, 16902), (1878, 15111), (1971, 14398), (2817, 10074), (3358, 8451), (3942, 7199), (5037, 5634)]