20281248

素因数分解:

$2^5\times 3^2\times {\mathrm{13}}^1\times {\mathrm{5417}}^1$

素因数の和:5446

約数の個数: 72

約数和(自身を含む): 62122788

約数和(自身を除く): 41841540

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, 5417, 10834, 16251, 21668, 32502, 43336, 48753, 65004, 70421, 86672, 97506, 130008, 140842, 173344, 195012, 211263, 260016, 281684, 390024, 422526, 520032, 563368, 633789, 780048, 845052, 1126736, 1267578, 1560096, 1690104, 2253472, 2535156, 3380208, 5070312, 6760416, 10140624, 20281248]

約数ペア:

[(1, 20281248), (2, 10140624), (3, 6760416), (4, 5070312), (6, 3380208), (8, 2535156), (9, 2253472), (12, 1690104), (13, 1560096), (16, 1267578), (18, 1126736), (24, 845052), (26, 780048), (32, 633789), (36, 563368), (39, 520032), (48, 422526), (52, 390024), (72, 281684), (78, 260016), (96, 211263), (104, 195012), (117, 173344), (144, 140842), (156, 130008), (208, 97506), (234, 86672), (288, 70421), (312, 65004), (416, 48753), (468, 43336), (624, 32502), (936, 21668), (1248, 16251), (1872, 10834), (3744, 5417)]