6400640

素因数分解:

$2^7\times 5^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1$

素因数の和:229

約数の個数: 64

約数和(自身を含む): 15624360

約数和(自身を除く): 9223720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 73, 80, 128, 137, 146, 160, 274, 292, 320, 365, 548, 584, 640, 685, 730, 1096, 1168, 1370, 1460, 2192, 2336, 2740, 2920, 4384, 4672, 5480, 5840, 8768, 9344, 10001, 10960, 11680, 17536, 20002, 21920, 23360, 40004, 43840, 46720, 50005, 80008, 87680, 100010, 160016, 200020, 320032, 400040, 640064, 800080, 1280128, 1600160, 3200320, 6400640]

約数ペア:

[(1, 6400640), (2, 3200320), (4, 1600160), (5, 1280128), (8, 800080), (10, 640064), (16, 400040), (20, 320032), (32, 200020), (40, 160016), (64, 100010), (73, 87680), (80, 80008), (128, 50005), (137, 46720), (146, 43840), (160, 40004), (274, 23360), (292, 21920), (320, 20002), (365, 17536), (548, 11680), (584, 10960), (640, 10001), (685, 9344), (730, 8768), (1096, 5840), (1168, 5480), (1370, 4672), (1460, 4384), (2192, 2920), (2336, 2740)]