28667304029

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^2\times {\mathrm{241}}^1\times {\mathrm{353}}^1$

素因数の和:667

約数の個数: 72

約数和(自身を含む): 37804774392

約数和(自身を除く): 9137470363

約数列:

[1, 7, 13, 23, 49, 91, 161, 241, 299, 353, 529, 637, 1127, 1687, 2093, 2471, 3133, 3703, 4589, 5543, 6877, 8119, 11809, 14651, 17297, 21931, 25921, 32123, 38801, 48139, 56833, 72059, 85073, 105547, 127489, 153517, 186737, 224861, 271607, 336973, 397831, 504413, 595511, 738829, 892423, 1105949, 1307159, 1657357, 1956679, 2427581, 3530891, 4168577, 5171803, 6246961, 7741643, 9150113, 11601499, 13696753, 16993067, 25436827, 45003617, 54191501, 81210493, 95877271, 118951469, 178057789, 315025319, 585047021, 1246404523, 2205177233, 4095329147, 28667304029]

約数ペア:

[(1, 28667304029), (7, 4095329147), (13, 2205177233), (23, 1246404523), (49, 585047021), (91, 315025319), (161, 178057789), (241, 118951469), (299, 95877271), (353, 81210493), (529, 54191501), (637, 45003617), (1127, 25436827), (1687, 16993067), (2093, 13696753), (2471, 11601499), (3133, 9150113), (3703, 7741643), (4589, 6246961), (5543, 5171803), (6877, 4168577), (8119, 3530891), (11809, 2427581), (14651, 1956679), (17297, 1657357), (21931, 1307159), (25921, 1105949), (32123, 892423), (38801, 738829), (48139, 595511), (56833, 504413), (72059, 397831), (85073, 336973), (105547, 271607), (127489, 224861), (153517, 186737)]