18303975

素因数分解:

$3^5\times 5^2\times {\mathrm{23}}^1\times {\mathrm{131}}^1$

素因数の和:179

約数の個数: 72

約数和(自身を含む): 35747712

約数和(自身を除く): 17443737

約数列:

[1, 3, 5, 9, 15, 23, 25, 27, 45, 69, 75, 81, 115, 131, 135, 207, 225, 243, 345, 393, 405, 575, 621, 655, 675, 1035, 1179, 1215, 1725, 1863, 1965, 2025, 3013, 3105, 3275, 3537, 5175, 5589, 5895, 6075, 9039, 9315, 9825, 10611, 15065, 15525, 17685, 27117, 27945, 29475, 31833, 45195, 46575, 53055, 75325, 81351, 88425, 135585, 139725, 159165, 225975, 244053, 265275, 406755, 677925, 732159, 795825, 1220265, 2033775, 3660795, 6101325, 18303975]

約数ペア:

[(1, 18303975), (3, 6101325), (5, 3660795), (9, 2033775), (15, 1220265), (23, 795825), (25, 732159), (27, 677925), (45, 406755), (69, 265275), (75, 244053), (81, 225975), (115, 159165), (131, 139725), (135, 135585), (207, 88425), (225, 81351), (243, 75325), (345, 53055), (393, 46575), (405, 45195), (575, 31833), (621, 29475), (655, 27945), (675, 27117), (1035, 17685), (1179, 15525), (1215, 15065), (1725, 10611), (1863, 9825), (1965, 9315), (2025, 9039), (3013, 6075), (3105, 5895), (3275, 5589), (3537, 5175)]