7880728380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{18763639}}^1$

素因数の和:18763658

約数の個数: 48

約数和(自身を含む): 25218332160

約数和(自身を除く): 17337603780

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 18763639, 37527278, 56290917, 75054556, 93818195, 112581834, 131345473, 187636390, 225163668, 262690946, 281454585, 375272780, 394036419, 525381892, 562909170, 656727365, 788072838, 1125818340, 1313454730, 1576145676, 1970182095, 2626909460, 3940364190, 7880728380]

約数ペア:

[(1, 7880728380), (2, 3940364190), (3, 2626909460), (4, 1970182095), (5, 1576145676), (6, 1313454730), (7, 1125818340), (10, 788072838), (12, 656727365), (14, 562909170), (15, 525381892), (20, 394036419), (21, 375272780), (28, 281454585), (30, 262690946), (35, 225163668), (42, 187636390), (60, 131345473), (70, 112581834), (84, 93818195), (105, 75054556), (140, 56290917), (210, 37527278), (420, 18763639)]