19207875

素因数分解:

$3^1\times 5^3\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1$

素因数の和:189

約数の個数: 64

約数和(自身を含む): 35582976

約数和(自身を除く): 16375101

約数列:

[1, 3, 5, 15, 17, 23, 25, 51, 69, 75, 85, 115, 125, 131, 255, 345, 375, 391, 393, 425, 575, 655, 1173, 1275, 1725, 1955, 1965, 2125, 2227, 2875, 3013, 3275, 5865, 6375, 6681, 8625, 9039, 9775, 9825, 11135, 15065, 16375, 29325, 33405, 45195, 48875, 49125, 51221, 55675, 75325, 146625, 153663, 167025, 225975, 256105, 278375, 376625, 768315, 835125, 1129875, 1280525, 3841575, 6402625, 19207875]

約数ペア:

[(1, 19207875), (3, 6402625), (5, 3841575), (15, 1280525), (17, 1129875), (23, 835125), (25, 768315), (51, 376625), (69, 278375), (75, 256105), (85, 225975), (115, 167025), (125, 153663), (131, 146625), (255, 75325), (345, 55675), (375, 51221), (391, 49125), (393, 48875), (425, 45195), (575, 33405), (655, 29325), (1173, 16375), (1275, 15065), (1725, 11135), (1955, 9825), (1965, 9775), (2125, 9039), (2227, 8625), (2875, 6681), (3013, 6375), (3275, 5865)]