128431212

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{83}}^1\times {\mathrm{109}}^1$

素因数の和:232

約数の個数: 144

約数和(自身を含む): 378766080

約数和(自身を除く): 250334868

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 52, 78, 83, 84, 91, 109, 156, 166, 169, 182, 218, 249, 273, 327, 332, 338, 364, 436, 498, 507, 546, 581, 654, 676, 763, 996, 1014, 1079, 1092, 1162, 1183, 1308, 1417, 1526, 1743, 2028, 2158, 2289, 2324, 2366, 2834, 3052, 3237, 3486, 3549, 4251, 4316, 4578, 4732, 5668, 6474, 6972, 7098, 7553, 8502, 9047, 9156, 9919, 12948, 14027, 14196, 15106, 17004, 18094, 18421, 19838, 22659, 27141, 28054, 29757, 30212, 36188, 36842, 39676, 42081, 45318, 54282, 55263, 56108, 59514, 63329, 73684, 84162, 90636, 98189, 108564, 110526, 117611, 119028, 126658, 128947, 168324, 189987, 196378, 221052, 235222, 253316, 257894, 294567, 352833, 379974, 386841, 392756, 470444, 515788, 589134, 705666, 759948, 773682, 823277, 1178268, 1411332, 1528943, 1547364, 1646554, 2469831, 3057886, 3293108, 4586829, 4939662, 6115772, 9173658, 9879324, 10702601, 18347316, 21405202, 32107803, 42810404, 64215606, 128431212]

約数ペア:

[(1, 128431212), (2, 64215606), (3, 42810404), (4, 32107803), (6, 21405202), (7, 18347316), (12, 10702601), (13, 9879324), (14, 9173658), (21, 6115772), (26, 4939662), (28, 4586829), (39, 3293108), (42, 3057886), (52, 2469831), (78, 1646554), (83, 1547364), (84, 1528943), (91, 1411332), (109, 1178268), (156, 823277), (166, 773682), (169, 759948), (182, 705666), (218, 589134), (249, 515788), (273, 470444), (327, 392756), (332, 386841), (338, 379974), (364, 352833), (436, 294567), (498, 257894), (507, 253316), (546, 235222), (581, 221052), (654, 196378), (676, 189987), (763, 168324), (996, 128947), (1014, 126658), (1079, 119028), (1092, 117611), (1162, 110526), (1183, 108564), (1308, 98189), (1417, 90636), (1526, 84162), (1743, 73684), (2028, 63329), (2158, 59514), (2289, 56108), (2324, 55263), (2366, 54282), (2834, 45318), (3052, 42081), (3237, 39676), (3486, 36842), (3549, 36188), (4251, 30212), (4316, 29757), (4578, 28054), (4732, 27141), (5668, 22659), (6474, 19838), (6972, 18421), (7098, 18094), (7553, 17004), (8502, 15106), (9047, 14196), (9156, 14027), (9919, 12948)]