20209950

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{97}}^1\times {\mathrm{463}}^1$

素因数の和:578

約数の個数: 72

約数和(自身を含む): 54975648

約数和(自身を除く): 34765698

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 75, 90, 97, 150, 194, 225, 291, 450, 463, 485, 582, 873, 926, 970, 1389, 1455, 1746, 2315, 2425, 2778, 2910, 4167, 4365, 4630, 4850, 6945, 7275, 8334, 8730, 11575, 13890, 14550, 20835, 21825, 23150, 34725, 41670, 43650, 44911, 69450, 89822, 104175, 134733, 208350, 224555, 269466, 404199, 449110, 673665, 808398, 1122775, 1347330, 2020995, 2245550, 3368325, 4041990, 6736650, 10104975, 20209950]

約数ペア:

[(1, 20209950), (2, 10104975), (3, 6736650), (5, 4041990), (6, 3368325), (9, 2245550), (10, 2020995), (15, 1347330), (18, 1122775), (25, 808398), (30, 673665), (45, 449110), (50, 404199), (75, 269466), (90, 224555), (97, 208350), (150, 134733), (194, 104175), (225, 89822), (291, 69450), (450, 44911), (463, 43650), (485, 41670), (582, 34725), (873, 23150), (926, 21825), (970, 20835), (1389, 14550), (1455, 13890), (1746, 11575), (2315, 8730), (2425, 8334), (2778, 7275), (2910, 6945), (4167, 4850), (4365, 4630)]