25543700

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{401}}^1$

素因数の和:442

約数の個数: 108

約数和(自身を含む): 69612732

約数和(自身を除く): 44069032

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 25, 26, 28, 35, 49, 50, 52, 65, 70, 91, 98, 100, 130, 140, 175, 182, 196, 245, 260, 325, 350, 364, 401, 455, 490, 637, 650, 700, 802, 910, 980, 1225, 1274, 1300, 1604, 1820, 2005, 2275, 2450, 2548, 2807, 3185, 4010, 4550, 4900, 5213, 5614, 6370, 8020, 9100, 10025, 10426, 11228, 12740, 14035, 15925, 19649, 20050, 20852, 26065, 28070, 31850, 36491, 39298, 40100, 52130, 56140, 63700, 70175, 72982, 78596, 98245, 104260, 130325, 140350, 145964, 182455, 196490, 255437, 260650, 280700, 364910, 392980, 491225, 510874, 521300, 729820, 912275, 982450, 1021748, 1277185, 1824550, 1964900, 2554370, 3649100, 5108740, 6385925, 12771850, 25543700]

約数ペア:

[(1, 25543700), (2, 12771850), (4, 6385925), (5, 5108740), (7, 3649100), (10, 2554370), (13, 1964900), (14, 1824550), (20, 1277185), (25, 1021748), (26, 982450), (28, 912275), (35, 729820), (49, 521300), (50, 510874), (52, 491225), (65, 392980), (70, 364910), (91, 280700), (98, 260650), (100, 255437), (130, 196490), (140, 182455), (175, 145964), (182, 140350), (196, 130325), (245, 104260), (260, 98245), (325, 78596), (350, 72982), (364, 70175), (401, 63700), (455, 56140), (490, 52130), (637, 40100), (650, 39298), (700, 36491), (802, 31850), (910, 28070), (980, 26065), (1225, 20852), (1274, 20050), (1300, 19649), (1604, 15925), (1820, 14035), (2005, 12740), (2275, 11228), (2450, 10426), (2548, 10025), (2807, 9100), (3185, 8020), (4010, 6370), (4550, 5614), (4900, 5213)]