90987770

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{443}}^1$

素因数の和:539

約数の個数: 64

約数和(自身を含む): 184135680

約数和(自身を除く): 93147910

約数列:

[1, 2, 5, 10, 19, 23, 38, 46, 47, 94, 95, 115, 190, 230, 235, 437, 443, 470, 874, 886, 893, 1081, 1786, 2162, 2185, 2215, 4370, 4430, 4465, 5405, 8417, 8930, 10189, 10810, 16834, 20378, 20539, 20821, 41078, 41642, 42085, 50945, 84170, 101890, 102695, 104105, 193591, 205390, 208210, 387182, 395599, 478883, 791198, 957766, 967955, 1935910, 1977995, 2394415, 3955990, 4788830, 9098777, 18197554, 45493885, 90987770]

約数ペア:

[(1, 90987770), (2, 45493885), (5, 18197554), (10, 9098777), (19, 4788830), (23, 3955990), (38, 2394415), (46, 1977995), (47, 1935910), (94, 967955), (95, 957766), (115, 791198), (190, 478883), (230, 395599), (235, 387182), (437, 208210), (443, 205390), (470, 193591), (874, 104105), (886, 102695), (893, 101890), (1081, 84170), (1786, 50945), (2162, 42085), (2185, 41642), (2215, 41078), (4370, 20821), (4430, 20539), (4465, 20378), (5405, 16834), (8417, 10810), (8930, 10189)]