64000640

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{9091}}^1$

素因数の和:9121

約数の個数: 64

約数和(自身を含む): 166929120

約数和(自身を除く): 102928480

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 320, 352, 440, 640, 704, 880, 1408, 1760, 3520, 7040, 9091, 18182, 36364, 45455, 72728, 90910, 100001, 145456, 181820, 200002, 290912, 363640, 400004, 500005, 581824, 727280, 800008, 1000010, 1163648, 1454560, 1600016, 2000020, 2909120, 3200032, 4000040, 5818240, 6400064, 8000080, 12800128, 16000160, 32000320, 64000640]

約数ペア:

[(1, 64000640), (2, 32000320), (4, 16000160), (5, 12800128), (8, 8000080), (10, 6400064), (11, 5818240), (16, 4000040), (20, 3200032), (22, 2909120), (32, 2000020), (40, 1600016), (44, 1454560), (55, 1163648), (64, 1000010), (80, 800008), (88, 727280), (110, 581824), (128, 500005), (160, 400004), (176, 363640), (220, 290912), (320, 200002), (352, 181820), (440, 145456), (640, 100001), (704, 90910), (880, 72728), (1408, 45455), (1760, 36364), (3520, 18182), (7040, 9091)]