28780128

素因数分解:

$2^5\times 3^2\times {\mathrm{13}}^1\times {\mathrm{7687}}^1$

素因数の和:7716

約数の個数: 72

約数和(自身を含む): 88150608

約数和(自身を除く): 59370480

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 32, 36, 39, 48, 52, 72, 78, 96, 104, 117, 144, 156, 208, 234, 288, 312, 416, 468, 624, 936, 1248, 1872, 3744, 7687, 15374, 23061, 30748, 46122, 61496, 69183, 92244, 99931, 122992, 138366, 184488, 199862, 245984, 276732, 299793, 368976, 399724, 553464, 599586, 737952, 799448, 899379, 1106928, 1199172, 1598896, 1798758, 2213856, 2398344, 3197792, 3597516, 4796688, 7195032, 9593376, 14390064, 28780128]

約数ペア:

[(1, 28780128), (2, 14390064), (3, 9593376), (4, 7195032), (6, 4796688), (8, 3597516), (9, 3197792), (12, 2398344), (13, 2213856), (16, 1798758), (18, 1598896), (24, 1199172), (26, 1106928), (32, 899379), (36, 799448), (39, 737952), (48, 599586), (52, 553464), (72, 399724), (78, 368976), (96, 299793), (104, 276732), (117, 245984), (144, 199862), (156, 184488), (208, 138366), (234, 122992), (288, 99931), (312, 92244), (416, 69183), (468, 61496), (624, 46122), (936, 30748), (1248, 23061), (1872, 15374), (3744, 7687)]