19822725

素因数分解:

$3^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{251}}^1$

素因数の和:289

約数の個数: 72

約数和(自身を含む): 39809952

約数和(自身を除く): 19987227

約数列:

[1, 3, 5, 9, 13, 15, 25, 27, 39, 45, 65, 75, 81, 117, 135, 195, 225, 243, 251, 325, 351, 405, 585, 675, 753, 975, 1053, 1215, 1255, 1755, 2025, 2259, 2925, 3159, 3263, 3765, 5265, 6075, 6275, 6777, 8775, 9789, 11295, 15795, 16315, 18825, 20331, 26325, 29367, 33885, 48945, 56475, 60993, 78975, 81575, 88101, 101655, 146835, 169425, 244725, 264303, 304965, 440505, 508275, 734175, 792909, 1321515, 1524825, 2202525, 3964545, 6607575, 19822725]

約数ペア:

[(1, 19822725), (3, 6607575), (5, 3964545), (9, 2202525), (13, 1524825), (15, 1321515), (25, 792909), (27, 734175), (39, 508275), (45, 440505), (65, 304965), (75, 264303), (81, 244725), (117, 169425), (135, 146835), (195, 101655), (225, 88101), (243, 81575), (251, 78975), (325, 60993), (351, 56475), (405, 48945), (585, 33885), (675, 29367), (753, 26325), (975, 20331), (1053, 18825), (1215, 16315), (1255, 15795), (1755, 11295), (2025, 9789), (2259, 8775), (2925, 6777), (3159, 6275), (3263, 6075), (3765, 5265)]