51981228

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{1019}}^1$

素因数の和:1151

約数の個数: 72

約数和(自身を含む): 142942800

約数和(自身を除く): 90961572

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 109, 117, 156, 218, 234, 327, 436, 468, 654, 981, 1019, 1308, 1417, 1962, 2038, 2834, 3057, 3924, 4076, 4251, 5668, 6114, 8502, 9171, 12228, 12753, 13247, 17004, 18342, 25506, 26494, 36684, 39741, 51012, 52988, 79482, 111071, 119223, 158964, 222142, 238446, 333213, 444284, 476892, 666426, 999639, 1332852, 1443923, 1999278, 2887846, 3998556, 4331769, 5775692, 8663538, 12995307, 17327076, 25990614, 51981228]

約数ペア:

[(1, 51981228), (2, 25990614), (3, 17327076), (4, 12995307), (6, 8663538), (9, 5775692), (12, 4331769), (13, 3998556), (18, 2887846), (26, 1999278), (36, 1443923), (39, 1332852), (52, 999639), (78, 666426), (109, 476892), (117, 444284), (156, 333213), (218, 238446), (234, 222142), (327, 158964), (436, 119223), (468, 111071), (654, 79482), (981, 52988), (1019, 51012), (1308, 39741), (1417, 36684), (1962, 26494), (2038, 25506), (2834, 18342), (3057, 17004), (3924, 13247), (4076, 12753), (4251, 12228), (5668, 9171), (6114, 8502)]