40571540

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{991}}^1$

素因数の和:1112

約数の個数: 48

約数和(自身を含む): 89994240

約数和(自身を除く): 49422700

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 89, 92, 115, 178, 230, 356, 445, 460, 890, 991, 1780, 1982, 2047, 3964, 4094, 4955, 8188, 9910, 10235, 19820, 20470, 22793, 40940, 45586, 88199, 91172, 113965, 176398, 227930, 352796, 440995, 455860, 881990, 1763980, 2028577, 4057154, 8114308, 10142885, 20285770, 40571540]

約数ペア:

[(1, 40571540), (2, 20285770), (4, 10142885), (5, 8114308), (10, 4057154), (20, 2028577), (23, 1763980), (46, 881990), (89, 455860), (92, 440995), (115, 352796), (178, 227930), (230, 176398), (356, 113965), (445, 91172), (460, 88199), (890, 45586), (991, 40940), (1780, 22793), (1982, 20470), (2047, 19820), (3964, 10235), (4094, 9910), (4955, 8188)]