81249948

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{1249}}^1$

素因数の和:1411

約数の個数: 72

約数和(自身を含む): 222950000

約数和(自身を除く): 141700052

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 139, 156, 234, 278, 417, 468, 556, 834, 1249, 1251, 1668, 1807, 2498, 2502, 3614, 3747, 4996, 5004, 5421, 7228, 7494, 10842, 11241, 14988, 16237, 16263, 21684, 22482, 32474, 32526, 44964, 48711, 64948, 65052, 97422, 146133, 173611, 194844, 292266, 347222, 520833, 584532, 694444, 1041666, 1562499, 2083332, 2256943, 3124998, 4513886, 6249996, 6770829, 9027772, 13541658, 20312487, 27083316, 40624974, 81249948]

約数ペア:

[(1, 81249948), (2, 40624974), (3, 27083316), (4, 20312487), (6, 13541658), (9, 9027772), (12, 6770829), (13, 6249996), (18, 4513886), (26, 3124998), (36, 2256943), (39, 2083332), (52, 1562499), (78, 1041666), (117, 694444), (139, 584532), (156, 520833), (234, 347222), (278, 292266), (417, 194844), (468, 173611), (556, 146133), (834, 97422), (1249, 65052), (1251, 64948), (1668, 48711), (1807, 44964), (2498, 32526), (2502, 32474), (3614, 22482), (3747, 21684), (4996, 16263), (5004, 16237), (5421, 14988), (7228, 11241), (7494, 10842)]