20893775

素因数分解:

$5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{179}}^1$

素因数の和:248

約数の個数: 48

約数和(自身を含む): 32140800

約数和(自身を除く): 11247025

約数列:

[1, 5, 7, 23, 25, 29, 35, 115, 145, 161, 175, 179, 203, 575, 667, 725, 805, 895, 1015, 1253, 3335, 4025, 4117, 4475, 4669, 5075, 5191, 6265, 16675, 20585, 23345, 25955, 28819, 31325, 36337, 102925, 116725, 119393, 129775, 144095, 181685, 596965, 720475, 835751, 908425, 2984825, 4178755, 20893775]

約数ペア:

[(1, 20893775), (5, 4178755), (7, 2984825), (23, 908425), (25, 835751), (29, 720475), (35, 596965), (115, 181685), (145, 144095), (161, 129775), (175, 119393), (179, 116725), (203, 102925), (575, 36337), (667, 31325), (725, 28819), (805, 25955), (895, 23345), (1015, 20585), (1253, 16675), (3335, 6265), (4025, 5191), (4117, 5075), (4475, 4669)]