181387908

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{20399}}^1$

素因数の和:20441

約数の個数: 72

約数和(自身を含む): 519792000

約数和(自身を除く): 338404092

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 19, 26, 36, 38, 39, 52, 57, 76, 78, 114, 117, 156, 171, 228, 234, 247, 342, 468, 494, 684, 741, 988, 1482, 2223, 2964, 4446, 8892, 20399, 40798, 61197, 81596, 122394, 183591, 244788, 265187, 367182, 387581, 530374, 734364, 775162, 795561, 1060748, 1162743, 1550324, 1591122, 2325486, 2386683, 3182244, 3488229, 4650972, 4773366, 5038553, 6976458, 9546732, 10077106, 13952916, 15115659, 20154212, 30231318, 45346977, 60462636, 90693954, 181387908]

約数ペア:

[(1, 181387908), (2, 90693954), (3, 60462636), (4, 45346977), (6, 30231318), (9, 20154212), (12, 15115659), (13, 13952916), (18, 10077106), (19, 9546732), (26, 6976458), (36, 5038553), (38, 4773366), (39, 4650972), (52, 3488229), (57, 3182244), (76, 2386683), (78, 2325486), (114, 1591122), (117, 1550324), (156, 1162743), (171, 1060748), (228, 795561), (234, 775162), (247, 734364), (342, 530374), (468, 387581), (494, 367182), (684, 265187), (741, 244788), (988, 183591), (1482, 122394), (2223, 81596), (2964, 61197), (4446, 40798), (8892, 20399)]