20173577425

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1\times {\mathrm{4751}}^1$

素因数の和:4978

約数の個数: 48

約数和(自身を含む): 27025270272

約数和(自身を除く): 6851692847

約数列:

[1, 5, 17, 25, 85, 97, 103, 425, 485, 515, 1649, 1751, 2425, 2575, 4751, 8245, 8755, 9991, 23755, 41225, 43775, 49955, 80767, 118775, 169847, 249775, 403835, 460847, 489353, 849235, 2019175, 2304235, 2446765, 4246175, 7834399, 8319001, 11521175, 12233825, 39171995, 41595005, 47467241, 195859975, 207975025, 237336205, 806943097, 1186681025, 4034715485, 20173577425]

約数ペア:

[(1, 20173577425), (5, 4034715485), (17, 1186681025), (25, 806943097), (85, 237336205), (97, 207975025), (103, 195859975), (425, 47467241), (485, 41595005), (515, 39171995), (1649, 12233825), (1751, 11521175), (2425, 8319001), (2575, 7834399), (4751, 4246175), (8245, 2446765), (8755, 2304235), (9991, 2019175), (23755, 849235), (41225, 489353), (43775, 460847), (49955, 403835), (80767, 249775), (118775, 169847)]