74851640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{661}}^1$

素因数の和:840

約数の個数: 64

約数和(自身を含む): 178740000

約数和(自身を除く): 103888360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 149, 152, 190, 298, 380, 596, 661, 745, 760, 1192, 1322, 1490, 2644, 2831, 2980, 3305, 5288, 5662, 5960, 6610, 11324, 12559, 13220, 14155, 22648, 25118, 26440, 28310, 50236, 56620, 62795, 98489, 100472, 113240, 125590, 196978, 251180, 393956, 492445, 502360, 787912, 984890, 1871291, 1969780, 3742582, 3939560, 7485164, 9356455, 14970328, 18712910, 37425820, 74851640]

約数ペア:

[(1, 74851640), (2, 37425820), (4, 18712910), (5, 14970328), (8, 9356455), (10, 7485164), (19, 3939560), (20, 3742582), (38, 1969780), (40, 1871291), (76, 984890), (95, 787912), (149, 502360), (152, 492445), (190, 393956), (298, 251180), (380, 196978), (596, 125590), (661, 113240), (745, 100472), (760, 98489), (1192, 62795), (1322, 56620), (1490, 50236), (2644, 28310), (2831, 26440), (2980, 25118), (3305, 22648), (5288, 14155), (5662, 13220), (5960, 12559), (6610, 11324)]