18688970

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{167}}^1$

素因数の和:243

約数の個数: 48

約数和(自身を含む): 36868608

約数和(自身を除く): 18179638

約数列:

[1, 2, 5, 10, 19, 31, 38, 62, 95, 155, 167, 190, 310, 334, 361, 589, 722, 835, 1178, 1670, 1805, 2945, 3173, 3610, 5177, 5890, 6346, 10354, 11191, 15865, 22382, 25885, 31730, 51770, 55955, 60287, 98363, 111910, 120574, 196726, 301435, 491815, 602870, 983630, 1868897, 3737794, 9344485, 18688970]

約数ペア:

[(1, 18688970), (2, 9344485), (5, 3737794), (10, 1868897), (19, 983630), (31, 602870), (38, 491815), (62, 301435), (95, 196726), (155, 120574), (167, 111910), (190, 98363), (310, 60287), (334, 55955), (361, 51770), (589, 31730), (722, 25885), (835, 22382), (1178, 15865), (1670, 11191), (1805, 10354), (2945, 6346), (3173, 5890), (3610, 5177)]