128043880

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1\times {\mathrm{541}}^1$

素因数の和:710

約数の個数: 64

約数和(自身を含む): 296387280

約数和(自身を除く): 168343400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 97, 122, 194, 244, 305, 388, 485, 488, 541, 610, 776, 970, 1082, 1220, 1940, 2164, 2440, 2705, 3880, 4328, 5410, 5917, 10820, 11834, 21640, 23668, 29585, 33001, 47336, 52477, 59170, 66002, 104954, 118340, 132004, 165005, 209908, 236680, 262385, 264008, 330010, 419816, 524770, 660020, 1049540, 1320040, 2099080, 3201097, 6402194, 12804388, 16005485, 25608776, 32010970, 64021940, 128043880]

約数ペア:

[(1, 128043880), (2, 64021940), (4, 32010970), (5, 25608776), (8, 16005485), (10, 12804388), (20, 6402194), (40, 3201097), (61, 2099080), (97, 1320040), (122, 1049540), (194, 660020), (244, 524770), (305, 419816), (388, 330010), (485, 264008), (488, 262385), (541, 236680), (610, 209908), (776, 165005), (970, 132004), (1082, 118340), (1220, 104954), (1940, 66002), (2164, 59170), (2440, 52477), (2705, 47336), (3880, 33001), (4328, 29585), (5410, 23668), (5917, 21640), (10820, 11834)]